01-19-2011, 09:08 AM
I agree with Timstrk and Broncosbybart. You have to pick either low end performance with no cam lope or a higher RPM street engine. I don't know how many miles are on your engine but here's something to consider. I tried to "freshen up" my old 302 with a new cam and heads and the extra compression and performance threw the motor over the edge. The older rings and bottom end couldn't stand it and failed quickly. It lasted about a year till I finally had to replace the motor because it was blowing by so much oil. I then went with a new 347 and wish I had done that to begin with.
JD
JD