With that combo, I'm thinking you're under 10:1. Probably more in the 9.6:1 range. To get 11:1 you'll need chambers in the 55cc range with a thin gasket. Not going to happen and as stated before, unless you're running race gas you're going to run into detonation problems with cast iron heads.
__________________
2001 Z-28....Gone, but not forgotten! |