I had my Evolution .46 on my nexstar and am wanting to fit my JBA .56 onto it. With the Evolution the muffler is just near -1/16 th off the fuselage but the JBA .56 actually rest directly on the fuselage, zero clearance. I notice that the motor mount is 1/4 off center to the right side. My question is -> Should I create a wedge to straighten out the firewall and remount the engine on center or should I make a spacer for the muffler to extend it out an 1/8 th or 3/32 nd to give me the desired clearance. I don't want to cook the skin off my bird.