Too many variables to just throw out a recommendation but I'd suggest you get the head casting numbers and run a compression test. Then decide what the rest of the combo will be. The cam needs to match your rear gear and converter . No good to have a cam that starts to pull at 3500 and tops out at 6k with 2.97 rear gears. You will never use the power. Don't over cam!!! Weight of vehicle intended use? Highway usage?