fresh 360. I have vac pump and cheked all vac lines. New EGR. Used full can of gum out around intake and base of carb. Checked line to vacuum booster. My transfer vacuum operates 4x4. adv vac holds. Just mild rv cam and my builder says I should be at 20 in vac. At cold start 13.5 warms to around 16 to 17 and fluctuates. 2150 carb has been cleaned and rebuilt. Im guessing internal carb leak? Thx
88 GW hei E-fuel pump 360
Last edited by redwoody : 06-30-2019 at 08:30 PM.