JEM
Full Access Member
- Joined
- May 11, 2012
- Posts
- 125
- Reaction score
- 9
- Location
- Union Bridge, MD
- First Name
- Joel
- Truck Year
- 1984
- Truck Model
- K20
- Engine Size
- 350
i have a sm456 and a 350 and i am wondering what rpms are good for highway use. i want 4.56 gears but 4.10s give me better rpms