Also check the vacuum line that goes to the booster. I had one that collapsed internally. When you let off the gas, expecially when you are at higher rpms, the vaccum spikes. This will suck the hose closed so the booster sees no vacuum.
That hose needs to be replaced ever so often.
Wanting a Custom fit in an off the rack world.
I don't have time for a job, I just need the money.
