I don't know about the Homies, but the 33cc-46cc Poulan chainsaw engines do need an engine mount , whereas many of the weedies can be bolted directly to the firewall. Depending on which mount you use, that could add another 6-8 Oz. to the weight of the engine assembly.

I'm not trying to put down the Poulans; I have both a 46cc and a 42cc. I just don't think they are good match for 1.20 class aerobats.

BTW, The H9 80" Cap is on clearance for $299. Perfect for the larger Poulans. Not for me unfortunately, my wife will go on strike if I heap another big ARF box on top of my existing pile.