While most just throw the factory stuff together, as the tolerances are that "loose", it doesn't hurt to check the runout of the components involved, and improve upon their fit and performance, mock up your stock bell, or the bell your using, and indicate the bore opening in relation to the crankshaft, check crankshaft endplay to see if that's an issue for your current engine, run an SFI approved flywheel, toss the factory flywheel,...check to see if your crank is drilled for a bushing?, if not, it bearing time, and trimming of the input shaft...other items that always need addressing is the factory Z bar set-up, lots of slop and alignment issues,that can be eliminated...


I'm sure others will chime in to help, don't hesitate to post questions or ideas/thoughts

Mike