oh and i forgot to mention that the guy i talked to ( Rick Anderson ) said that the problem is 30 tooth or less blower pulleys.I really forget exactly which i have either a 30 or 28. My car is 90% street driven and makes way too much power as it is...so if i decide to go serpentine and lose a little traction thats fine. Right now i spin my 408 up to 7200rpm. I believe i've pretty much tapped out the ys at this point. Maybe i'll go serpentine...using the same blower rpm(63,000 ish rpm) and then have it upgraded to YSi next year. Weird how my engine builder,tuner never had belt problems on the chassis dyno. If i can fix this and my cooling system problem....and then maybe get my PA super leaker C-4 to stop leaking i'll appreciate and drive the car rather than thinking of selling it. I have a hrad time believing there is nothing i can do to fix my cooling problem.