I have a 95 Gt that I would like to start a new motor build. I would like to around 400rwhp. I will must likely be doing a turbo set up. What block should I use? I have been told a 302,331,or a 351w. Any of they will be built with all forge internals. Please help with this. I will be also using gt40p heads,work alittle with a nice cam.