There are probably others better qualified to help you for certain - the UMTR forum is pretty good.
I loosened mine up a couple more turns and burned it up. Talked to Tim Hyatt and he said I had the wrong parts in there - too small a diameter, not a high enough friction material, and a sprung hub. I think the guy I work with at McLeod underestimated the car?
The combination Tim supplied seems to be better on the street so far - I need to get out to the track with it. Very different setup with shims under the plate and a far thicker disc. Gave me some problems assembling - not enough clearance between the fork, plate fingers and the bellhousing to get any free play. Ended up making a spacer between the block plate and the bellhousing, trimming the input collar on the trans, and trimming the fork itself.