So for tuning up the 454 I bought Accel shorty spark plugs, Taylor Spiral Pro 8mm wires w/ 135* boots and a Summit Blueprinted HEI dizzy w/ 50,000v coil. What should I set the gap to on the plugs and any other recommendations (timing, vac advance, etc). The 454 was from a 1992 motor home and completely rebuilt with Edelbrock performer manifold and 750 carb, and has Flowtech headers.