Best mini starter for RB big block 440 engine with TTI headers.

Make sure your flywheel has the right tooth count for the starter or you will break noses off. Just went through this.
I probably need to research this a little but I thought all of the newer Denso starters work with the automatic trans flex plate or flywheel? I was told by the experts at TTI if you have a manual trans you have to make sure you have the correct teeth or flywheel size? Maybe someone can advise?