heads, cam, or carb?
#1
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heads, cam, or carb?
i have a 350, and a budget build-up
its a stock bottom end, with a cheap summit-1103 cam(.442/.465 lift, 214/224 duration), weiand stealth intake, and holley 750dp. i have #370 casting heads(mortec says "over the counter, 64cc, straight or angle plug"), they are ported and polished with 1.94/1.5 valves. i have 1 5/8 shorty headers, and a stock 305 i-pipe
i think that the carb is way to big for my engine, the engine runs super rich at WOT.
i also think the stock 305 i-pipe is extremly restrictive.
is my thinking right? are my heads any good? what should i change first? i have a brand new comp 270H cam, would this make any more power? I finally got some money saved up, so i can start working with the engine now
its a stock bottom end, with a cheap summit-1103 cam(.442/.465 lift, 214/224 duration), weiand stealth intake, and holley 750dp. i have #370 casting heads(mortec says "over the counter, 64cc, straight or angle plug"), they are ported and polished with 1.94/1.5 valves. i have 1 5/8 shorty headers, and a stock 305 i-pipe
i think that the carb is way to big for my engine, the engine runs super rich at WOT.
i also think the stock 305 i-pipe is extremly restrictive.
is my thinking right? are my heads any good? what should i change first? i have a brand new comp 270H cam, would this make any more power? I finally got some money saved up, so i can start working with the engine now
#2
A 550 CFM mechanical secondary or 600 CFM vacuum secondary carb would be more appropriate on that engine.
You could probably tune the 750 to run better with it, but the metering is likely already sized for a larger displacement engine.
You could probably tune the 750 to run better with it, but the metering is likely already sized for a larger displacement engine.
#3
Senior Member
Originally posted by Vader
A 550 CFM mechanical secondary or 600 CFM vacuum secondary carb would be more appropriate on that engine.
You could probably tune the 750 to run better with it, but the metering is likely already sized for a larger displacement engine.
A 550 CFM mechanical secondary or 600 CFM vacuum secondary carb would be more appropriate on that engine.
You could probably tune the 750 to run better with it, but the metering is likely already sized for a larger displacement engine.
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