
yeah definately the m112. From what i have read its a perfect match for the vh45 and should max out the factory injectors at over 400hp. Water injection is a cheap, clean and effective way of doing things without an intercooler too (so you can keep the SC top mounted and blowing straight down)
A cast manifold would be best if its available- and I've come across lots of hype on here about some kit thats available but which just needs someone to "step up" and take one....but all contact details ive had for this kit get no reply.
May end up doing something with the factory runners yet, who knows.
Nicest way would be to draw one up and get it cnc milled out of aluminum plates but thats out of my price range $$$$$$$
