I really miss running that 3400, like the power it had, guess I'm gonna love it even more with more power, grunt grunt grunt, trying to do Tim Allen. [emoji38]
Steve Sidwell, Samsung On5 using Tapatalk
With that 3700 top end you will see a lot more compression. For some reason the double thin ring in those had more compression than the double thick ring that came in the 3400 and 3800. Get rid of the base gasket and it will be even better. Also take the plastic intake and smooth out all those casting ridges and port match the exhaust from the cylinder to the muffler. Also open up the baffle in the muffler and open the muffler exit hole itself.