And I will never understand how a budget build 318 morphs into big cam, big heads, big everything; but the stock pistons are still way down in the holes, requiring a hi-stall now, and usually gears. You guys crack me up. The only Thing still 318 is the displacement.
And like I said right in the beginning; on a tight budget, 325hp from a 318 is no small thing.
And now for the ultimate budget build;
since the hi-stall and gears are a given,
just install those right now and leave the engine alone; you will be amazed at how a 2800 and 3.91s can wake up your Duster.