273 into a 62 Lancer?

dual exhaust is not a problem on an early A,, all you need to do is cut a smal amount out of the cross member,,then make a piece to fit back in that will allow the pipe to pass under with out ground clearance problems,,piece of cake if you have a wizzer cutting tool or a sawzall and a welder,,,V8 lancer would be wild...seen a 340 in one once very kool