Re jetting quadrajet carb
#2
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hard to tell, my 377cid made 380hp at dyno. 39 main rods. 73 main jets. CE secondary rods. P hanger.
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#3
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#5
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What size engines, static and dynamic compression, cam card? It should still idle, check your timing and check for air leaks between the intake and carb or intake and heads.
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Its a 350cid (1975 L82 short block) changed from 76cc heads to 64 cc (so about 10:1 ) with 190 cc intake runners, Compcams extreme marine Advertised Duration 278/292, Lift .498/.500, dual plane air gap intake with stock 280trs carbs (7044290) I have sprayed BOTH engines intakes with carb cleaner !!!! Both act the same. No change in rpm. If I block the air horn it will speed up a lil.
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Sure it's not sucking in water and stalling it ?
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What part number is the intake? If it's a square bore intake there may not be enough flange to seal the carb on a spread bore carb. Edelbrock makes an adapter plate that's only an 1/8' thick for just this. Might be sucking air around carb base.
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https://www.summitracing.com/parts/c...44-4/overview/
Brand:COMP Cams
Manufacturer's Part Number:12-244-4
Product Line:COMP Cams Xtreme Marine Camshafts
Summit Racing Part Number:CCA-12-244-4
Cam Style:Hydraulic flat tappet
Basic Operating RPM Range:2,000-6,200
Duration at 050 inch Lift:234 int./244 exh.
Advertised Duration:278 int./292 exh.
Valve Lift with Factory Rocker Arm Ratio: 0.498 int./0.500 exh.
Lobe Separation (degrees):112
If so, yeh,exhaust sucking water back is a huge possibility
#2, engine will probably ant initial timing somewhere between 16-20* BTDC
#3 the stock carb metering will be out too lunch. don't know what to suggest with your cam/comp....can't help you there as cams that large I have a Holley Carb on it.
Last edited by SB; 04-24-2019 at 09:57 PM. Reason: Fixed cam # and specs