Can I run a 80 amp alternator without modifying the electrical system on my '68 Coronet? Only elec changes I have in system will be a elec fuel pump, and Maybe?? a secret audio stereo in the future. I was looking at this chrome unit from Mancini. Would I be better off going to a internal regulator or stay with the external? pro's /cons? I need to start getting some of this small stuff fgured out so I will be ready when the motor comes home!! Mancini