[2manyT/A'S]

Originally Posted by 3tas4me

I am looking to make my 1979 TATA run a little better. I just had a new dual exhaust system installed with 2 1/4 inch pipes all the way back through Dynomax turbo mufflers with an H pipe. The engine is otherwise stock with about 50k miles on it. Plugs, wires, cap and rotor are all reasonably new. The carb has been overhauled and the heads were also cleaned up. What have any of you done to get your W-72's to run harder? I am looking mostly for just changing the distributor timing curve and carb rejetting. I do not want to change cams or anything else, just want to maximize what the factory gave me.
The butt dyno tells me that the new dual exhaust did not seem to make much difference in performance, I am actually disappointed so far......

FIRST things FIRST........you didn't say what GEARS you are running.

3: 23 is stock 70 W72...have they been changed out,because that will really affect your BUTT DYNO readings....