- Joined
- October 20, 2004
- Messages
- 8,877
- Reaction score
- 38
- City, State
- Pulaski, TN
- Year, Model & Trim Level
- 1991 Explorer/2002 F-250
i have a 91 explore and i am about to swap a lower mile 4.0 into because mine has 300000+. i have a 4.0 on=ut of a ranger and i want to get some more power out of it before it goes in because i will be sas in a few weeks. so what is the best way to achive power out of the 4.0