[johnnyBgood]

You will not be able to get 200whp from this motor without going to the internals. It is just not going to happen.

Same ourself some time and money and get a turbo kit. The 4G64 was made to be turbo'ed. Plain and simple. Mitsu got cheap and never added the turbo when they should have. The engine responds incredibly well to boost, and over 250whp is quite an easy feat with running only 8psi. The engine can take up to 15psi safely.