I just rebuilt my 1993 Indy 500 EFI and in the process of pulling the flywheel I messed up the magnets (long story). The local used parts shop had a flywheel from a 1994 Indy 500 EFI, it has a different part number but looks identical. I put it on and re assembled my Indy but now have no spark. The fuel pump buzzes as normal but no spark. Anyone know if the 1994 flywheel is compatible on a 1993?