[steve]

The car is pretty much an unmodified 81 firebird. I think the original curb weight was almost 3400lbs. I have aluminum heads, intake, and wheels so it’s still over 3000 easy. Th400 trans, Holley efi, dennys driveshaft, moser 3:55 rear. 275/40/18 rear tires. What else do you need ? I do have adjustable shocks but no drag tires. Headers, 2.5” exhaust, and turbo muffs

I was told one of the differences with the mustang dyno is that it puts a load on the engine while testing while the dyno jet does not which could result in as much as a 10% difference in readings.