vkh
Full Access Member
- Joined
- May 21, 2015
- Posts
- 436
- Reaction score
- 138
- Location
- Western Montana
- First Name
- Var
- Truck Year
- 1981
- Truck Model
- C2500
- Engine Size
- 454
My bad, I was thinking of the hot air riser that comes off the exhaust manifold. I admittedly don't have much experience with the smog gear, my truck basically just had a smog pump on it and I ditched it long ago (no testing in Montana).exact opposite.