Sent the original pistons back and now ordering the new ones through Tom. Machine shop suggested I go with the dished pistons and aim for 8:1 compression for lower octane. I have the meth injection system to supplement either way. In the mean time, I have a couple queries...

Here is my cam card:


Will my stock valve springs hold up to that lift? On Gbauer's recent lifter/cam thread (now I know why he wanted the pump clearance pics) I read the springs hold up to 450 then maybe 500 and then someone mentioned needing to replace them was "a myth". I'd like to use all stock parts on the head, at least for now.

I'm putting my new forged pistons on stock rods. For a goal of 300-350HP, is this dooming my build? Obviously anything can happen, but I've read people say "I've had stock rods to XXXHP for X years with no problem" and others piss on the idea of cast rods with any Turbo. Is this likely not an issue for me or is it really only a matter of time before they go?

Ian


67' Camaro - Performance 250 build - www.TurboCamaro.ca