I run a 454 in my '54 3100. I currently have a CompCams Magnum 280, with high-bleed lifters, but am getting ready to replace it with a HE268 and regular lifters. I am running a TH400 transmission, headers, Edelbrock performer manifold, Edelbrock carb, and basically stock internals- other than the cam/lifters. The main reason for change is that I am going to be towing a travel trailer (about 8,000 pounds), and want the lower rpm performance. The high-bleed lifters are noisy, like solids, and even with them the idle is rough. Gas mileage is atrocious. I don't need a high-rpm race truck any more.
