Originally Posted By Hemi Allstate
Can someone please explain why one engine likes less timing and another needs more ?

Thanks,
Mark

I race with a guy that builds big engines and races a Top Dragster. He has a 669 that loves 25 degrees. He explained to me that the less timing a motor likes, the more efficient that motor is. My high compression 493 likes 34 degrees. I mean it HATES anything else.