Yea That is what I told the builder was to keep it at 10.1 nothing more. So 106 will be good? if we went to 104 could be too much closing the valve earlier yet?.. What I meant is if i go to 102 from the other comment, doesn't the idle get choppier being a earlier ICL or no?.. I plan on doing the dist mod also.. thinking this cam will like about 15-18 initial? Being a street car it shouldn't be a dog even with the his current gear, and the 11" 2400 conv right?He wants to be able to have a nice power band and not be a pig til it comes up on the cam when he tries to goose it.. thanks guys! Really appreciate it!