Easiest/Cheapest way to a 4bbl 318?

Thanks for all of the input and info everyone. I think I have more questions than ever now :).

LX: I briefly looked for an LD4B on eBay and came up with nothing. I also did a Google search and didn't see anything obvious except for the fact that these intakes are pretty highly sought after and are becoming scarce, so I'm thinking the price might be outside of my budget even IF I do find one.

So maybe I should just throw some headers and dual exhaust on the current setup...maybe throw a posi unit in the rearend and just plan to build a mild 360 over the winter. I was really wanting to use the current 318 because it has just under 68,000 miles on it, but maybe that would be counter-productive.

The car is currently very slow, but also very consistent at the track. More consistent than I am anyway ;)