Thanks for the info. Looks like I'll have to keep my eyes open for a good late model core. I also heard rumor of a 2 or 3 year 318 "Fast Burn" head used on some of the PIs in the 80's that were small chamber heads. Not sure if they are a hot ticket item or not. I don't know if I'll go roller cam or not. For what the car is used for, I don't think it's really necessary, at least for money spent.
It'll be a while till i get back to the Duster. Right now I'm kinda tying up what $$ Santa Dan has in his "T" C-Cab, at least till it's mobile again and not deplete what $$ he's got saved up for his shop this spring...