Along with what B-Man said on camshaft, dunmp the flowmasters for a pair of Megnaflow mufflers. The flowmasters are just noise, but the Megnaflows will help get more power. There is a 25+ hp difference on a 400 on the dyno. If you have hood clearence, a 1 inch 4 hole modified spacer with the secondary side opened between the two sides under the carb will be a benefit. Your timing should start around 36-38 degrees total, with it coming all in by 2400 rpm. You can also use a 1.6 rocker arm on the intake only without pushrod clearence issues. Going with a 4 tube header and 2 1/4" or 2 1/2"max dia exhaust will work very well. Don't even waste your time on the three tube headers as with the exhaust on, there will be no difference from the exh. manifolds.
__________________
Have A Great Day
|