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Unread 02-17-2011, 11:25 AM   #1
Mudviper
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1999 XJ Cherokee 
 
Join Date: Dec 2009
Location: Flint
Posts: 78
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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Unread 02-17-2011, 01:51 PM   #2
Alby63
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1982 CJ5 
 
Join Date: Dec 2010
Location: , NJ
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.
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'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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Unread 02-17-2011, 04:34 PM   #3
texasimport
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1978 CJ5 
 
Join Date: Aug 2009
Location: Loveland, Colorado
Posts: 338
never mind, missed your comment about you getting injection. Different animal.
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