new dart owner needing help.

Sorry to hear about you catching the Mopar disease lol. Hopelessly addicted like the rest of us. To keep your costs down, probably the easiest thing would be to find a good running 318 or 360 which are plentiful (and usually cheap at a wreckers), and just swap her out. At least you can enjoy the extra two cylinders immediately.

PS. No more "posi", you got a Sure-Grip..

Welcome

Grant