So I had FPS build me a 331. Short story, I put it in and now the car overheats after 5 minutes of driving. If let to idle it stays right about 210. I have a fluidyne, 160 t-stat(tried 180, 190), new upper radiator hose, new radiator cap. Upper radiator hose holds a lot of pressure, to the point where it seems it might bust. I would think something is clogged in the system, but what? Thanks in advance.