The jap spec gen2 from the st182 was MAP i believe.Ask steve (Farmsci 16 has a thread in members rides atm)
But yeah, if your gonna do the swap make sure you use the gen2 head with the gen2 wiring otherwise you'll hit probs with the manfiold, TVIS etc (but i hear that its a very tight squeeze using the gen 2 manifold)
anyway, yeah do that conversion or go all out and get a gen3 or BEAMS.Get a gen 3 mate, y not?