Thanks for the correction. It's getting harder not to make mistakes.

The poster wants booster and master cylinder.
No other info provided so assume:
* 1/2 ton front and rear drum brakes
* Dual reservoir
* Probably 7" booster (if it will fit)
* Cutting extra hole in floorboard to access new master cylinder fluid fill


"Adding CFM to a truck will only help at engine speeds you don't want to use."
"I found there was nothing to gain beyond 400 CFM."