Doesn't matter--not near enough for OP's goal with manifolds and highway rear gearing. OP needs 300+hp and 340-360 ft/lbs. The manifolds and 2.76 gears are only 2 limitations but they are the 2 worst limitations. J.Rob
You may very well be right, but stick around a bit and we will find out :) !! Only numbers I like on paper are printed on a E.T. slip :D Regardless, this will still be a cheap build option for folks wanting to add a little more pep to their 318.