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Unread 09-29-2006, 12:19 PM   #1
AMC Power
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1986 CJ7 
 
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4 barrel carb for 258

What carb would be a good choice for my 258 with the 4 barrel intake? I was thinking of the Holley 470 cfm truck avenger series carb, but is that too big? I have seen a few guys that have it on their Jeeps with the 258.

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Unread 09-29-2006, 02:42 PM   #2
okjeep98
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You definately dont want to go w/ anything bigger than 470. Anythings better than the carter carb.
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Unread 09-29-2006, 02:51 PM   #3
Bard
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I use to run a holley 390 years ago on my offenhauser intake, worked pretty good, but I switched it over to a 2 barrell setup and went to a weber which works great for what I do with it.
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Unread 09-29-2006, 03:21 PM   #4
80cj
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I ran a 4 barrel setup several years back--Offy Dual Port Manifold, Holley 390 CFM 4 barrel and Advance headers. The Holley was a poor choice as an offroad carb (even the stock BBD is better)and the headers and manifold kept loosening up. Back to the stock manifold and carb. Better gas mileage and offroad ability.
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Unread 09-29-2006, 06:48 PM   #5
amc232
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Too bad you cannot do a search on this, there has been alot of good info on this topic. The truck avenger carb would be a fine choice. I have run a 600 holley for my daily driver for years and love the tunability and parts that are available for the Holley carbs. The avenger are good at running at angles and come equiped with various tuning options. If you have taken some engine preporations, your engine will do fine in running a carb of that size.

Hope this helps,
Bill
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Unread 09-29-2006, 07:21 PM   #6
AMC Power
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Thanks guys!
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