I have a 355 with a dyers 6-71 on a weiland intake. I bought a vac./boost gage but there is not a fitting to be found on the intake, the fitting on the carb (holley 750) shows me vac., and more vac. under throttle. Anyone have a similar setup and or a solution?

I have a 355 with a dyers 6-71 on a weiland intake. I bought a vac./boost gage but there is not a fitting to be found on the intake, the fitting on the carb (holley 750) shows me vac., and more vac. under throttle. Anyone have a similar setup and or a solution?

You need a vacuum source under the blower, in the intake. Everything above the blower will show vacuum. If there is no fitting in the intake you'll need to remove it and drill/tap it for one if you want a boost gauge.

Jody

Drill and tap a fitting in one of the intake runners.

i have the same set up. drilled into the pop off valve on the intake and installed the a tee one going to the boost gauge the other going over into the msd box. works great

Thanks for the help.