i have a 66 coupe with a stroker 347 a novi 1200 supercharger a toploader 4 speed with wider of the 2 ratios. i am using a webber clutch right now and is rated up to 500 on the tourque side and slips. i was curious to see what other clutches people are using. i would like to stay away from a ceramic clutch but it looks like that what i will have to go to.