Well, turns out my 390 is a 410. Perhaps why I was so happy with it. When I first bought the truck I was told it had a 390. Suppose the joke is on him.
Shortly after buying the rig, I swapped out the stock heads and intake 2bbl (not sure what they were) for a set of rebuilt C8AE-H heads and edelbrock performer intake. Also Edelbrock (carter) 750 carb, headers, dual 2 1/2" exhaust. It ran very well for 2 years but now smokes very bad. Bottom end never rebuilt w/ stock cam (dont know what it is)
I would like to rebuild stronger. Going to bore +30 and keep 1U crank for a 416 I believe. What comp. ratio should I look for. Suggestions on pistons? Would a performer RPM intake be advantageous or will it exceed my RPM range for a higher torque motor. Also heard a higher lift/shorter duration cam would yield best torque. Is this true?
Thanks, kapp