Holley Pro-jection question - JeepForum.com

 
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post #1 of 3 Old 02-17-2011, 10:25 AM Thread Starter
Mudviper
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1998 ZJ 
 
Join Date: Dec 2009
Location: Flint
Posts: 99
Holley Pro-jection question

I have a 79 CJ7 with a 304. The 304 that is in it from what I am being told is not the original engine that came with it. It has a 4 bolt harmonic balancer instead of a 3 bolt, which would be for that year. I am told the 4 bolt balancers were in the earlier years around 72 and had a higher horse power rating

I was in the market to buy a holley truck avenger 470 for my 304 when I came across a guy selling a new holley pro-jection 670 two barrel system for the same price as the truck avenger. My question is would the pro-jection 670 cfm be to much for the 304. The 304 has some cam modifications and possible boring to it. I didn't build the engine, so not sure.

Thanks

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post #2 of 3 Old 02-17-2011, 12:51 PM
Alby63
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1982 CJ5 
 
Join Date: Dec 2010
Posts: 517
Should be fine on your motor. Holley has a 650cfm and recommends it for anywhere from 150 - 300 hp. Check the software and computer firmware versions and make sure they're not out dated. Can call Holley and they can tell you what the most recent version is.

'82 CJ5, glass body, 327, Holley Stealthram Pro 950 EFI, B&M Turbo350, Dana 44/30, Lockers, 3.73's, 6-1/2" lift, 35's, stainless mustang SLP exhaust
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post #3 of 3 Old 02-17-2011, 03:34 PM
texasimport
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1978 CJ5 
 
Join Date: Aug 2009
Location: Loveland
Posts: 338
never mind, missed your comment about you getting injection. Different animal.

78 304-CJ5
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