I am considering getting an bisson muffler for puttiong a gms 76 in a hangar 9 sport cap, has anyone used this combination and if so how did it fit, I have heard of one guy that got a bisson and it would not clear the bottm of the motor mount. ANd if anyone knows how much clearance the is from the muffler outlet to the top of the muffler it would be appreciated. From the pics it looks pretty tight in this area. thanks rickey