- Joined
- Jan 13, 2006
- RO Number
- 19956
- Messages
- 363
I recently read an article about improving fuel efficiency with Crusaders 454. This winter I changed the plugs but with the motora having 750 hours (1990 models) should I change the distributors? If yes, should I upgrade to the Delco HEI and where can I find the parts? And last question, how difficult is the project?