6500 Awesome! To the op I had a 3.23 suregrip (cone) and couldn't break the tires free. Turned out to be a worn out suregrip, switched to 742 clutch type, 3.55's and was able to lay some nice slabs. Grant it this was before the rebuild of the motor. Still had the same stall 2400-2600. My cam is smaller Comps 275DEH 219/235 462/482.
