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02-27-2014, 09:49 PM | #21 |
Junior Member
Join Date: May 2010
Location: Seal Cove,Maine
Posts: 16
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Re: Need advice on a 4-barrel carb
I have a 390 cfm Holley on a 8ba with a 3/4 cam and aluminum heads and it works great out of the box.I am happy with it.
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02-28-2014, 10:36 AM | #22 |
Senior Member
Join Date: May 2010
Location: 74FL
Posts: 323
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Re: Need advice on a 4-barrel carb
A 390 holley is a 390 holley - shop for price, or patronize your favorite retailer.
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Daddy always said, "If yer gonna be dumb, you gotta be tough" and I'm one tough sumbitch! T5 Tech |
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02-28-2014, 11:11 AM | #23 |
Senior Member
Join Date: May 2010
Location: Chester Vt
Posts: 8,841
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Re: Need advice on a 4-barrel carb
When switching to any 4bl, you have to change the distributor. At this point your not i a plug and play mode. You'll have to find the right advance curve and AF for your engine. Done right, you get great performance as well as economy.
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02-28-2014, 11:41 AM | #24 |
Senior Member
Join Date: May 2010
Location: NJ
Posts: 6,143
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Re: Need advice on a 4-barrel carb
I was thinking about the Edelbrock 500 some more. I've never run a 4 bbl so I don't know, but I would think it was be right on par with running a 3X2 set-up.
If I recall correctly, three 97's wide open would get you in the ballpark of 450 cfm. The beauty of the 4 bbl. is that it only gives you full cfm when your foot is in it. Others, you are only running on the primaries. |
02-28-2014, 12:45 PM | #25 |
Senior Member
Join Date: May 2010
Location: Port Townsend, WA
Posts: 601
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Re: Need advice on a 4-barrel carb
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02-28-2014, 12:54 PM | #26 |
Senior Member
Join Date: May 2010
Location: Chester Vt
Posts: 8,841
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Re: Need advice on a 4-barrel carb
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