Newish member here

Hello! I have been a member for a while BUT I just never stayed in touch. I have a 1967 Dart GT factory A/C and disc brakes plus a factory 4 speed. I also have a 1972 Duster factory 3 speed car and a 225 slant.
The Duster is the next project. The problem is what to do! I have a 408 on the engine stand for the Dart. But I always thought it would be fun to build a slant motor. When the 408 goes in I will have a 318 for the Duster BUT I have 2 good running slants....Oh what to do!