1987_chevy
Member
- Joined
- Dec 8, 2012
- Posts
- 43
- Reaction score
- 1
- Location
- Vermont
- First Name
- Dylan
- Truck Year
- 1987
- Truck Model
- K20
- Engine Size
- 454
I've been driving my truck for about a month now and have gotten way worse gas mileage than I expected. I have calculated somewhere between 7-10 mpg. This is a little bit of mixed driving, keeping it around 60 on the highway.
My setup is an sm465 with 3.73 gears, and a 830 HP carb. I realize the the carb being a performance carb could hurt gas mileage, but it's not running rich. I like the gearing of the truck, and I plan to pull it and i think that gearing will work well.
Any other experience with a similiar setup? or any suggestions?
My setup is an sm465 with 3.73 gears, and a 830 HP carb. I realize the the carb being a performance carb could hurt gas mileage, but it's not running rich. I like the gearing of the truck, and I plan to pull it and i think that gearing will work well.
Any other experience with a similiar setup? or any suggestions?