I recently bought a Poulan 19cc conversion gasser for my 120 size bipe(weight - I don't know). My problem concerns the way engines are rated or labelled. I was told that 1000cc's equals a .60 size glow; so that would mean my Supertiger 3000 would be equal to a 1.8, right? OK, then this new poulan 19cc would be equal to about an .074? Something is not right here, but I don't know if it's the numbers, or me. Can someone help a certified old fart?