I run a spec clutch and flywheel, because they have a contingency - I don't think it much matters. I've got national brand parts store stuff in mine and it seems to be fine. All the LS camaro work we've been doing with the #82 uses parts store stuff for pilot/throw outs and it's fine, the engines on the other hand...
I think the rules are explicit in saying you have to run a steel flywheel, so keep that in mind.
- Josh
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