Ethan Keuning
Junior Member
- Joined
- May 18, 2020
- Posts
- 7
- Reaction score
- 6
- Location
- Michigan
- First Name
- Ethan
- Truck Year
- 1987
- Truck Model
- R10
- Engine Size
- 350
Hey guys, just wondering if anyone knows what sort of gas mileage I can be expecting. Im about to drop in a rebuilt 350 with about 375 hp. It has a 650 cfm holley carb. It is sitting in a lowered 87 R10 running 255 55 16 tires. I am in no way smart with math, so im not sure where to go with this and figuring out gas mileage. Mostly just wondering cause im 16 and this thing has to run on premium according to the people who checked over my engine after i built it. Wanting to know how much of my paycheck ill be using for gas. I can give more info if needed.