Price: $1,000.00
Pros: Imediate increase in throttle response and no more issues on hills or altitude differences. I also got to toss the maze of smog lines and keep in smog legal in CA. Jus needed to keep the cat, canister, egr and PCV
Cons: It can take a bit to get it it really dialed in if you're picky like me. I didn't have a prom code reader so it was more trial and error for me. Buy a prom code reader and be done with it. It's a no brained after that.
Recommended? Yes

Comments: Great product that really made a serious improvement in the jeep! I recommend it to everybody I know who has one

Price: $1,100.00
Pros: Reliability, cold starting, off-camber running.
Cons: None
Recommended? Yes

Comments: One of the best upgrades I've ever made to a Jeep. I should have done this a very long time ago. Wheeling has never been easier, cold weather starting is a snap and that's saying something for Jeeps!

Price: $1,200.00
Pros: Great fuel economy, always starts, No running rich, easy install, unlocked lot of power.
Cons: None
Recommended? Yes

Comments: I bought the Howell TBI last spring to replace my rebuilt carb. I was tired of the 8 miles to the gallon that I was getting. Plus it always smelled of gas in the cab. It was super easy to install, I did it in about 6 hours over to evenings. I decided against the Mopar kit due to a few vendors detailing a bunch of problems with the factory kits. I have taken it into elevation and had no trouble at all. I ask the guys at Howell to flash me a chip for altitude incase I ever run into trouble up in the mountains. I had been to 12,000 foot and the jeep ran great with the stock program. I think it is a great kit for the price.

Price: $1,199.00
Pros: got rid of the stalls on the slopes
Cons: none yet
Recommended? Yes

Comments: Been Deployed since before this was installed. Hope to come home to a totally easier to keep runnin Jeep

Price: $1,300.00
Pros: Start Up First Try,Passed Emissions No Problem.
Cons: None Yet
Recommended? Yes

Comments: Easy install took about 4 hours total! only problem I ran into was with the cto switch, wasnt correct from PO. So make sure you have the correct one in there.

Price: $800.00
Pros: Runs great
Cons: No compliants
Recommended? Yes

Comments: To save some cash I got several bone yard TBI's and rebuilt one of them keeping the other as a spare. Save several hundred. I added a Clifford intake and Jacobs Milemaster ignition and Ultra coil at the same time. I should have installed the TBI kit and got it working and dialed in the then went and added the other items. But I had pulled the motor to rebuild it and then had to try and remember what connected to what... Major PITA but self inflicted. No digital cameras back then...

Price: $1,200.00
Pros: Performance
Cons: Tuning it...
Recommended? Yes

Comments: Jeep drives much better, specifically on the highway. Better fuel economy. Easy to install, I am not a mechanic. A little difficult to tune...they don't tell you that you need a larger fuel return line.

Price: $1,200.00
Pros: engine performs better, better gas mileage
Cons: wiring harness too short, mounting bracket not included for MAP sensor, instructions were very general, should use knock sensor and control timing
Recommended? Yes

Comments: The wiring harness supplied with the kit is just barley long enough to reach all the components, this prevents a neat installation as all the wiring is stretched.
I also don't care for the use of hose and screw clamps for the connections of fuel lines to the throttle body, I don't feel that they are safe over the long term.
I would have preferred the Mopar system but could not afford it.

Price: $1,200.00
Pros: Starts in all weather, perfect idle, never stalls due to trail angles, engine will run down to 300 RPM which is a huge advantage.
Cons: Except for price, none.
Recommended? Yes

Comments: Upgrading to the Howell TBI system may be be the best mod on my Jeep. The installation is not hard, and getting rid of the miles of vacuum lines I had with the Carter BBD carb is wonderful.

This TBI system has no drawbacks. Trail manners are perfect. It always starts quickly even in sub-zero temperatures (yes, we have extreme weather in the New Mexico mountains).

Do not expect huge power gains or improvements in gas mileage. There may be some improvements but they are small. I would not buy the Howell system for these gains. The main improvement is basic engine runability which is first class. The Howell tuns the 258 into a modern engine.

Howell makes a version of this kit that will pass California emissions tests.

Price: $1,200.00
Pros: So long carb and Pulse air system
Cons: cost
Recommended? Yes

Comments: With the CA emissions system it can replace the pulse air system on your CJ that you can't find parts for and runs so much better without the stock carb.

Price: $1.00
Pros: Turn Key
Cons: Idles high at times, I'm sure it's a vacuum problem just need to figure out where.
Recommended? Yes

Comments: Still working out some kinks, just need a little more time to figure it out.

Price: $1,800.00
Pros: Runs great
Cons: expensive....
Recommended? Yes

Comments: Great product if you plan to keep an "old" "non-injected" engine

Price: $1,300.00
Pros: Run's smooth
Cons: Install and getting it to run right was a nightmare.
Recommended? Yes

Comments: According to Howell, the TBI kit comes from them set at 12 lbs of fuel pressure. Mine was more around 18 lbs (floods the engine). Ended up having to run a fuel pressure regulator. If you install this kit, I would reccommend using a fuel pressure tester before you even fire the engine for the first time (on both the supply and return lines), just to see where your fuel pressure is at. Also, maybe its just my jeep, but on the return line it goes: carb/TBI, rubber line, steel line, rubber line again, and finally into the steel line that runs down the frame rail to the gas tank. I took off the first steel line and ran rubber line from the TBI to the steel line on the frame rail to reduce the amount of pressure on the return line as well as decrease the distance. Also had to use an adapter to reduce the size of the return rubber line so it would fit onto the return steel line on the frame rail. If you live in CA or other smog state, you will probably have to replace the catalytic converter as the stock cat is a 2-way converter with an air tube connect to the rest of the emmisions components. Since the TBI kit no longer needs the stock emissions components, you need to upgrade to 3-way cat and keep the air tube capped. Also, CA catalytic converters are the same as the other 49 states but have a different serial/product number that MUST be used only in CA. Thank you smog nazis.

Price: $1,200.00
Pros: Runs smoother and I don't worry about inclines or changes in elevation. Wasn't too hard to install.
Cons: $$$$$
Recommended? Yes

Comments: Make sure if you order the set-up from one of their distributers, such as 4WD or Quadratec that you call Howell first, might save you hassels down the road. Because I already had a MSD ignition box I should have received a converter from Howell with the kit I bought from 4WD. The guys from 4WD never asked me about my current setup and just gave me a kit from the catalog. Anyways, I eventually had to give it to a mechanic after I installed the kit because it did not run quite right and he called Howell and they sent the neccessary part to run off my MSD.

Price: $1,190.00
Recommended? Yes

Comments: WORKS GOOD HAD SOME FLOODING PROBLEMS THAT WENT AWAY. SOLVED STALLING PROBLEM I HAD WITH CARBURATION AND PASSED CALIFORNIA SMOG.

Price: $1,100.00
Recommended? Yes

Comments: Works great. Not an easy installation and wouldn't recommend it to someone with limited mechanical or electrical experience. But a great product and it has definitely helped the performance.

Price: $1,200.00
Recommended? Yes

Comments: Easy to install, cleans up the engine compartment tremendously. Runs better than the old carb. but that was a piece of crap. Can't seemt to make it quite running rich. Have replaced the chip 3 times and talked to Howell mahy times.

Price: $1,100.00
Recommended? Yes

Comments: Instructions could have used a little more diagrams and seperate the Calif Legal from all the other units. Easy to install and started on the first turn with old fuel and no timing adjustment.

Price: $1,300.00
Recommended? Yes

Comments: Good product easy to install though takes a bit of tinkering to make it run correctly

Price: $1,100.00
Recommended? Yes

Comments: Very happy with it so far. It runs better than new, more power, higher rpm and no flooding on hills.