be careful about losing the air system, when I took the belt off the smog pump seems like it messed up the pump, had to get a new pump to make it pass.
It is amazing how the simple 4 wire or 5 wire harness goes in place of the lean burn system. I found some good under hood shots of a 76 Aspen ( no lean burn on it from the factory). One could easily wire in the 5 wire and use the lean burn air cleaner w/ computer brain box. Run a vac line from the LB box to an empty port - get clever.