318 2bbl Rebuild

I'll throw in my 2 cents...
Leave the 318 alone. Looks great! I'm sure it runs even better. In the mean time... find a good 5.2 or 5.9 magnum, and for a side hobby start building a mild-decent street engine. You know, the cam, 4bbl, etc etc. Then, when you say the 318 2bbl has got to go, you'll have a drop and go engine (with a good set of Doug headers) waiting for install.