I have just received my CCP master cylinder and booster. The booster has a 3/8" OD inlet but all the vac. outlets on my 1975 / 250 in line 6 are all 3/16" OD. Should I drill a hole in the intake manifold and tap it for a 3/8" fitting or ? Anyone done this before? Hope I have the required
18 lbs of vac they suggest.
