Listen to FrenchtownFlyer. He knows!
First, what are you looking for, Horsepower for racing or sound & power for cruising? It makes a difference.
For a basic all around good system for the street, use the Stovebolt cast headers, 2 1/4"-2 1/2" all the way back. Keep the bends smooth and no sharp turns, and for sound, place a LOW restriction muffler right before the rear axle. Cap it off with a nice 3" or larger exhaust tip and you're set! Most Inliners are going to steer you towards what they have tried or use as we all are proud of our rides.
Rule of thumb: Listen to everything, judge for yourself. If you are over 50 years old, you know what to do! If you're under 50, try a system and if it doesn't work for you, change it.
RapRap
1940 ChoppedChevyCoupe
