Built a 350 with flat top pistons and a 1970 LT1 solid lifter cam.Car (70 Chevelle) currently has 4 spd and drum brakes...want to put power disc on front but was told the cam wouldn`t make enough vacume to supply power brakes...true or no?Thanks

The factory offered power brakes with that cam. I am more curious if the flat top pistons give you enough static compression for that cam.

Vacuum gauge check?