At one time there was a 120 amp kit offered, but now they (Mancini, Hughes) only offer the 60 amp kit; if someone had bought that 120 amp kit and had the Denso number off the Alternator that would be the ticket. AREngineerings website doesn't list a phone number or email address.

I looked at the one on EBay as above, but on the cross reverence alternates it lists they are 60 amp units so I would suspect that it's still a 60 amp one.