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Hey guys well went out to Kurgan Motorsports' dyno day, about 10 cars in total. Car made 347/340 w/ single exhaust and stock driveshaft in 60 degree weather. It was 80 degrees today and I put my car on the dyno after an 1 1/2 hour drive. I have added true duals and an aluminum DS since last run so I expect in the 355-360 range in cooler weather, maybe more.
First run made 329/317 because my clutch was slipping in the upper RPMs.