What is the highest timing i wanna have? I believe it would be to get the most until i get knocking, and pull back a degree or two?

so if my motor doesnt knock, and i'm at 20 degrees, i can keep turning it up until say 27 where i get a knock, and go back a degree or two, and keep it there?

 

You need to give some details on your setup (how much boost and what's the compression?)

The gas you use will have a bearing on how much timing you can run.

Are you running an intercooler?

What a/f ratio are you shooting for and what are you using it tune it?

 

That's not the case at all. You might want to do a search as this has been discussed before. But the only way to empirically determine optimum timing is on a dyno or at the track. That said, most blown LT1's seem to do best with 24-26degrees.

Rich