i am considering changing out the stock e7's on my car for a set of windsor jr's. the windsor's have a 58cc combustion chamber. this is on a 306 which was rebuilt. the car has a t60 turbo running 8lbs of boost. will the smaller combustion chambers bump the compression ratio up too much? the 306 was built with forged pistons maintaining stock compression ratio which if i recall correctly is 9.0-1? before anyone asks i don't want to go with aluminum heads....the car will be a daily driver for the most part and i don't want to deal with the more fragile aluminum heads.