shymangs & steve;
What about useing a hydro boost system that works off the P/S.
Then you don't have the large vac booster.
Most of the hydo boost system were on like 78 chevy 1/2 ton with the funky diesel set up.
Even the 3/4 & 1 tons used the hydo boost system.
These system were about the size of a master cyl just longer.
Just my 2 penny worth.
T-P Auto
Tim