[1fastredsc]

I think the problem might not be the C/R but the fact that you have JE pistons and a CIS system. If you noticed when taking your original pistons out that the had a wierd curved shape to the dome, it had a purpose. Since CIS constantly dumps metered fuel into the sytem, it never completely atomizes with the on coming air. Therefore the shape of those pistons you took out were designed to help swirl the air as it entered the combustion chamber so the fuel would atomize properly before combustion took place. A way to get rid of this need is to use carbs or a sequential fuel injection system, this way fuel is only extracted when it's needed. Plus i'm not an expert on cams as i haven't delt with them yet, but i believe the only cams that our cars accept are sc or 964 cams.