I know it was early Greg, but isn't it 8" rims? Also, 245/255's could be up to the task for a sprint race even at 3520 lbs.
That's for a motor that wasn't even touched on the inside and running a retuned oe DME. Now here's a race built motor with a custom AEM set up:
http://forums.bimmerforums.com/forum...80&postcount=1
Do you think you can get 270hp?
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