Brake booster question

Heehee!
Yeah put the bit in there before looking for a new booster. You will have to readjust your pushrod length, I'm pretty sure.
Also here's a test; with the engine running,clamp off the vacuum hose to the booster and note the engine rpm. Go step on the brake pedal about 4 times to exhaust the vacuum supply.Now check the tach,nothing should have changed.Next back under the hood remove the clamp. The engine rpm should immediately drop about 50 rpm, then recover back to the noted rpm. This would be normal.
Then shut the engine off. Pump the pedal again to exhaust the vacuum supply. Push the pedal down with about 50 pounds of force, and start the engine. The pedal should drop under your foot; that is normal.
If your booster works like this, and you cannot hear a vacuum leak under the dash, then it is ok.
I have to wonder how your brakes work tho, cuz without that bit in there it should not hsave been possible to shorten the pushrod enough for the compensating port to work.And that means the control valve inside the booster has never been centered, so in effect, the brakes would always have been applied. This would have made the brakes quite sensitive.
Another possibility is with the pushrod not adjusted, the first time you used a lot of pedal, the control valve woulda broke, and the engine would be continually sucking air under the dash.Of course with the broken control valve, he booster would no longer work.