Very Mild 318 Build

You can probably port match your 318 exhaust manifolds and heads nicely and get a little flow since you have the exhaust system already. I know some people will flame me for this but I recommend a mopar electronic distributor with vac advance, and get a mounting plate from www.designed2drive.com and install a GM HEI 4 pin electronic ignition module to run the stock Chrysler electronic distributor. You eliminate your firewall ballast resistor and just connect the wires together. This will help you with ease of starting, better idle, and acceleration over stock. I also recommend getting a mopar denso mini starter off any dodge truck with a magnum 318, 360, or 3.9L V6. It's only about 8 lbs and outputs more HP than the stock 20 pounder that the car came with.