How does a Q 52 stack up in power to the US 41. The US 41 will turn a 20/8 zinger at 6700. The Q 52 having the muff on the opposite side might work because the side for the carb on the 41 is cut pretty good,enough for a bennett muffler. That would mean that I might could cut a small hole on the other side for the carb if I can skip the v stack ext. And your sure its the same foot print on the firewall THANKS LEE