400hp Motor combinations on 7m/1js

[Raysupra]

I have a 7m that is toast.. I was wondering what kind of combinations could I look at that would hold 400 hp? will a good rebuilt stock motor hold that? or would it need forged internals? what about the stock Fuel System? are the 440 injectors gonna be pushing to hard or should i get 550s and a new pump? I haven't really seen or head many testimonial of Motor Combinations for 400+ hp

I want to Hear and See and hear Your Combination for 400-500hp
did u use a stock 1j or rebuilt 7m or a stock 7m maybe just well kept