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Unread 05-10-2014, 05:48 PM   #1
Registered User
1979 CJ5 
Join Date: Apr 2009
Location: Augusta, gA
Posts: 12
Holley carb and engine assistance

Hello folks, been awhile since i've been on. Been having an issue getting my 79 CJ5 with 258 , 4.0 Head swap to run right. I added an Offy 4 barrel intake as well as put on a Holley 470 TA carb along with a 4 barrel carb spacer to get it properly mounted as the linkages would allow for a flush mount. It has the 57 jets in there right now and the power valve was replaced to the correct pv as I was drawing 22 pounds of vacuum. My issues are the carb seems to always run rich and the exhaust has a strong fuel smell, so much it gets into my clothes when I drive it. I've opened the gap up on some fresh spark plugs last weekend to .045. I have also done the Team Rush upgrade in the past.
I'm wondering if the carb is just to much carb and I should have gone with a 390cfm. One thing I did do with the carb was add the non adjustable fuel bowls to it that way I wouldn't have to fiddle with it. Seems though i'm fiddling with it way to much!!!!
Any suggestions will greatly be appreciated.

ukenout is offline   Reply With Quote Quick reply to this message
Unread 05-11-2014, 10:31 AM   #2
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1971 CJ5 
Join Date: Jan 2002
Location: Eagle Point, Oregon
Posts: 6,855
Rich at idle? readjust the idle mixture. Check to see if the power valve is leaking.
Rich under cruise? try a smaller jet
Rich under acceleration (secondaries closed)? smaller power valve. Secondaries open, smaller secondary jets
If your smelling exhaust on your clothes while your driving, YOU MUST RE-ROUTE YOUR EXHAUST
jeepdaddy2000 is offline   Reply With Quote Quick reply to this message

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