So I raced my first race with my new blower setup From VMP. My friend has a 2010 ZR1 with a cam, ported blower, upper and lower pulley @15lbs, and full exhaust. I have my mods in my sig but mostly stock motor, VMP TVS @9 Lbs and full exhaust. Im also 200lbs heavier. Raced 3 times from a 50 roll and I finished 2-1 . My lone loss I was a little late on the hit. Was a very close race but I slightly pulled at the end. Justin had make one hell of a blower. Very happy with it