Nitrous would be the easiast if you go wet kit. Be careful though since the pistons are just hypers. What also amazes me is the ramjet is only 2 bolt mains. No forged rods or crank like the ZZ4.
As of right now I dont know of anyone who can program mefi-3 controllers. S&P would be the only place I could think that might be able to but Im not sure. Ask airdeano about that.