Ok, so I have just bought a GX-15 to replace my GX-12 on my car. The chances are that it aint really going to go much faster with the new engine? Also the engine came with a short crankshaft! Could I pull the old one out of the .12 & put it in the .15, due to the length that I need for the clutch.
I bought a tumed pipe & manifold, I should really put that on the .12 if I'm going to stick with it, right? Are tuned pipes made for specific engine sizes? Or could I use the same exhaust on both the 12 & 15?