My car was a 4 door 68 dart with full interior. It weighed 3100 pounds. With the combination I gave you the car pulled 1.68 60 foots with nothing but a pinion snubber for traction control with stock springs and air shocks. The front shocks were 90/10's. The car ran a best of 12.60 at 104 mph. The key was the cam and especially the converter and gears. The converter ran great on the street even for the high stall. 800 bucks, but turbo action was the best. I tried more than a few over the years. The car started at 17.76 1/4 with a stock two barrel all the way down to 12.60. This combo. was perfect. I woul come out of the whole at around 3800 to 4000 rpm.