I JUST GOT A 94 CIVIC COUPE IN GOOD CONDITION IT HAS THE STOCK MOTOR FOR 500$, BUT I ALSO HAVE A 1991 HATCHBACK THAT I HAVE BEEN WORKIN ON FOR THE PAST 7 MONTHS I HAVE A FULLY BUILT LS VTEC MOTOR THAT I PUT IN THE EF, but i ran into a problem with the wiring but as i was looking around at some efs i want to go all out with mine. so should i put my lsv in the coupe or keep it in my ef?

91 EF9 LSV
94 COUPE SOHC
08 MERCURY MILAN