yet another ??? .. Ok i have a lot of the plane complete.. I mounted the engine tonight... it says in the book to mount the engine 5 7/8" from firewall to backplate of spinner.. My firewall has no thrust built in so I made a shem plate out of 1/16" plywood (should be aprox. 4-5 degree from what i understand), it is only under the left side of motor mount. that should give me the right thrust.. Once mounted I noticed the left side of the motor mount was dead on 5 7/8 but the right side is 1/16' shorter... Is that the way it is suppose to be??? I am not sure if i should have split the difference... also the predrilled hole for the throttle control is on wrong side.. I will drill a new hole, do I patch the old???

Any help is appreciated...