What I explained was for you just swapping the intakes and wiring harness. If your engine still runs good, you dont need a efi block. I personally would rather have a 83 and before 22R since it has a dual row timing chain and domed pistons. They have a little more torque then the flat top pistons in a efi motor. If you want more info feel free to call me. 925-270-5314 Josh
