I have even seen 460s in them. But, all I want is something fun to drive that gets reasonable mileage. I am gonna try one of the new 625 Street Demon 3 barrels on a stock 84 GT intake. My exhaust is limited to the mustang II manifolds since headers are costly and require cutting the car. I am having a custom cam ground from Oregon. It made almost 350 pound feet of torque with the head flow numbers entered on the desktop dyno. That should be snappy.
