Old 02-09-2008, 12:12 PM
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Join Date: Nov 2007
Posts: 28
Default CARB??????

:? I am building a 383 chevy would like input on the size of carb. Some info 11to1 comp, 250 nitrous, hurricain intake, world heads professionally ported and polished and matched. 1.6 rockers

cam specs
Cam Style: Mechanical roller tappet
Basic Operating RPM Range: 3,000-6,500
Intake Duration at 050 inch Lift: 255
Exhaust Duration at 050 inch Lift: 262
Duration at 050 inch Lift: 255 int./262 exh.
Advertised Intake Duration: 300
Advertised Exhaust Duration: 308
Advertised Duration: 300 int./308 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.575 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.575 in.
Valve Lift with Factory Rocker Arm Ratio: 0.575 int./0.575 exh. lift
Lobe Separation (degrees): 114
Intake Valve Lash: 0.020 in.
Exhaust Valve Lash: 0.020 in.
Computer Controlled Compatible: No

thanks for help :?
HUNTER39 is offline  
Old 02-09-2008, 01:33 PM
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Join Date: Aug 2007
Posts: 10

750 to 800 cfm is nice for your combination
amal is offline  
Old 02-10-2008, 06:22 AM
Join Date: Dec 2005
Location: Building shelves for wally's
Posts: 36

Bolaws & Airflow research and others use this formula
engine cubic inches X maximum RPM

Example a 383 @ 7000rpm would use 775.75 carb. for a race engine and a rule of thumb is too use the next smaller size if for occasional street driving.

oobob is offline  
Old 02-10-2008, 05:17 PM
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Location: Brookings South Dakota
Posts: 244
Default AED carb

You need the AED 750 HOM carb, we sell them, would work great for your application
cncmotorsports is offline  

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