[CatDaddy60]

Thanks for the input on rules. While I would build per the rules if I were campaign ing the car I'm looking for an engine that can be driven in a spirited daily drive and occasionally autoxed . so what ever class it takes just let me driver.. So starting at the crank and fly wheel Dave is there any advantage rpm wise to running a lighter flywheel, cyl you said 96 mm, valves 42mm intake 36 exhaust with porting and better keepers and stiffer springs any advantage to higher rate rocker is see Ing 1 to 25 is available. The next question is for a cam recommend. See change one thing and it all changes.. Just trying to build the right engine by asking people who have more experience with these than I have.