Here are some more figures for comparison. This info is all from GM Heritage Center documents.
The 305ci V8 Camaro in 1988 had a 3.08 rear axle.
The TPI 305ci made 290 lb-ft or torque at 3200 rpms.
The EFI 305ci made 255 lb-ft of torque at 2400 rpms.
By comparison, my 1971 250ci makes 145 HP.
It has 230 lb-ft of Gross torque at 1600 rpms.
and 185 lb-ft of Net torque at 1600 rpms.
If I run 29' tires and my 3.73 rear then calculations show I'll have 1906 rpms at 70 mph and 1770 rpms at 65 mph if I'm in 5th gear (0.63). I just don't see myself driving over 70mph in this truck.
Last edited by Lugnutz; 06/13/2013 8:27 PM.