I finally got around to installing the summit vacuum reservoir after deciding where to put it...Turns out it fit very nicely above/aft of the pedal box in the SPF. Actually have always power brakes now!
The only real issue was that ALL the connections need to be very good so as not to lose any vacuum.
It just installs between the manifold and brake booster, check valve toward the engine. I also replaced the check valve on the brake booster with a plain elbow...
Cannister fastened in by two bolts right up through the footwell.
Part:
Summit Racing® Vacuum Reservoirs SUM-G1461 - Free Shipping on Orders Over $99 at Summit Racing