kychevy
Junior Member
- Joined
- Aug 28, 2022
- Posts
- 19
- Reaction score
- 7
- Location
- Kentucky
- First Name
- Todd
- Truck Year
- 1987
- Truck Model
- k10
- Engine Size
- 350
Guys, I am sorry if it’s been asked b4 but I’m a little stumped with the fuel sending unit. 87 TBI and adding 2nd tank that was removed. Bought the crossover lines and had new tank plumbed but then took a look a look @ passenger tank and the 1/4” line is the vapor line. Reason I state this is the crossover lines I bought from LMC has the 5/16” metal line as the vapor. I was under impression 3/8 was feed, 5/16 was return and 1/4 was vapor…..is that wrong? That metal line has me 2nd guessing myself now.