Originally Posted by heshtesh
Ran my 383 with 10.7 to 1 on 91, when i tore it down with approx 50,000 on it there was absolutely zero ring ridge in the bores. The new engine is 12.1 to 1 on 93 this will be intresting( or expensive ) part of the fun.
It won't be interesting, it will be a disaster in my opinion.