by Guest Mon Aug 30, 2010 6:37 pmI have a 66 Econo with a newly rebuilt 300/6, I was given a Clifford 6=8 intake manifold and I am wondering what size Holley carb I should be looking for, I know I need to keep the CFM's around 500 but Im just not sure how big I can go without having issues ....thanks.
3 posters
What size Holley for my 300
Guest- Guest
use an Edelbrock. You will be much happier.
Guest- Guest
Thank you, what size Edelbrock would you suggest?
kgdb- Number of posts : 266
Location : Canada
Registration date : 2009-12-03
A 500 cfm Edelbrock Performer would do very nicely.
kgdb
kgdb
DanTheVanMan- Commissioner
- Number of posts : 7900
Location : Escanaba, Michigan
Age : 62
Registration date : 2008-10-08
Got a 500 CFM for my 327!!!!!
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DanTheVanMan
1965 Chevy G10 Sportvan Custom
1984 Jeep CJ-7 Laredo, Restored
2004 Kawasaki KLR650
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PDXvanman- Number of posts : 37
Location : Portland, OR
Registration date : 2010-02-12
Wow. IMO, 500cfm is going to be WAY over carb'd...
I have a rebuilt 300/6, clifford intake, clifford headers, big valves, custom cam, ported, etc., etc...
I'm running a Holley 390 and it goes like stink. If anything, I'm still over carb'd.
I have a rebuilt 300/6, clifford intake, clifford headers, big valves, custom cam, ported, etc., etc...
I'm running a Holley 390 and it goes like stink. If anything, I'm still over carb'd.
DanTheVanMan- Commissioner
- Number of posts : 7900
Location : Escanaba, Michigan
Age : 62
Registration date : 2008-10-08
I like Edelbrock but good luck finding anything under a 500 CFM. You really should keep in the 255- 350 CFM range for the L6 300. This will give the the best overall response, power & mileage...
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DanTheVanMan
1965 Chevy G10 Sportvan Custom
1984 Jeep CJ-7 Laredo, Restored
2004 Kawasaki KLR650
1997 Jeep TJ Sport
My Mini Gallery
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