Gear
Like I told you in the EARLIER POST?PUT THE 4.88 in,do you remember me telling you that i ran a 4.86 Gear?Put the 4.88 Gear in and 10.80's shold be NO Problem!I ran 10.30's with a 355,you have LOTTS more Motor!
Mid 10's should NOT be out of the Question,unles your Truck has a Bed full of CONCRETE BLOCKS??????????
Later
G 8)