I bought an overhauled O-360 A2F that came from an Aerocomander that was destroyed by wind on the ramp. The engine was sitting a while and I later discovered that it was full of corrosion. I replaced lots of parts including the cylinders and crankshaft. I am getting ready for my first flight and was wondering if i might need a richer main jet due to the speed difference of the donor aircraft and my RV7. The Carb is an MA-4-5 PN 10-4404 which appears to be for an O-540. I have ground run the engine, idles great, proper rpm rise with idle cut off and I am getting expected static RPM. I really don't have much faith in the person I bought this engine from and am guessing he gave me the wrong carb. Will the combo work?