who runs 13sec to 12.80 in the 1/4

Yes.

I would have had to shave alot to get 10 to 1 with the stock "dish" pistons I had. I would have had to shave the intake also and maybe shorter pushrods.

For me, it was simpler and more cost effective to just get new pistons.

210-232-7417 call me, I am at work right now.