Just did the exact swap. Schumakers is a great source of parts and info. I am currently running the stock fuel pump with a return pressure regulator. One wire alt made a big difference. I bought a set of headers off e-bay. Buy the conversion install kit.It comes with adaptor plates that bolt in, motor mounts and the tranny mount adaptor. Well worth the money.You will need an oil pan off of a 1990 Dakota with a 318. I found mine at car-part.com for $50. Mine was a 4 banger and the exhaust was a [Edited by Moparts - Keep it clean]. Had to shim the engine up 1/2 inch to clear the flange to the frame. You will have to buy a pusher fan for cooling and get an old style water pump to clear the radiator. Mine came off a 68' teen. Problem was the bottom is on the drivers side. Block off the fuel pump area if using the pump in the tank. I just wired mine to the key switch. Always on when key is on. I used a 727 trans and bought cooler lines for a 72 A-body. Had to shorten a little but they work great. Stock heavy radiator. If you run a mechanical gauge use copper tubing. The heat made my plastic split 2 times. Both at the block. If you have any questions e-mail me.
Shawn