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L79 holley 4150 carb

brumbach

Well-known member
Joined
Mar 6, 2004
Messages
330
Location
Middleboro, KY
Corvette
1965 convertible
I believe the correct carb for the L79 is 600 cfm. If so, what's the impact of using a 650 cfm? Thanks -- Bill
 

paul67

Well-known member
Joined
Mar 2, 2003
Messages
1,113
Location
Ontario, Canada
Corvette
1974 convertible
I can't see that there would be any effect, either positive or negative. The Quadrajets used on small block (350cid) engines in the C3 generation were 750cfm.
 

cfalson

Well-known member
Joined
Apr 28, 2004
Messages
97
Location
New York
Corvette
1966 Trophy Blue Coupe
Tne correct CFM for an original L79 is 580, Holley repalcements are 600 CFM, the extra 50 CFM on a good running motor will have a good effect.
 

Mike McKown

Well-known member
Joined
Aug 11, 2002
Messages
60
Location
Falls of Rough, Ky.
Corvette
1963 roadster 1965 coupe
I believe the correct carb for the L79 is 600 cfm. If so, what's the impact of using a 650 cfm? Thanks -- Bill


If the only difference is the CFM rating and not single vs dual squirter or jets or manual vs auto choke the impact would be drivebility impact would be none.
 

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