Need Clutch Guru Help !

I run a 340 and 410 stroker,I used the same 10.5 center force dual friction clutch with both motors, works bitchin....frys the tires and rips'em loose every shift.

I doubt you have too much power.
I question the fork rod adjustment, and was the flywheel surfaced?

I do know that stock replace style NAPA clutches do not keep up with a hot 340, they do slip some....I wonder if the linkage was biff'd with the center force, then corrected with the zoom which just might not have the holding force of the center force.

But....was it a dual friction center force or ?