Does anybody else have a Gilson Snow Cannon/Lawn Boy Model 1850 with the 2 stroke OMC D570? I have the Gilson Snow Cannon with the Lawn Boy/OMC D570 with the Walbro HDC 56 carburetor. I want to know how I can get more performance out of it. I am one that just never has enough horsepower or is going fast enough. Exhaust port tuning? Carburetor mods? I just got done rebuilding it and haven't started it yet. I am waiting for some aviation form a gasket sealant to dry on the carb's fuel fitting for a couple days before I put gas/oil in it, start it and tune it.