Idle Rpm High in Park, Low in Drive
IF YOU BUY a manufactured piston stop
Take steps to make sure that the center plunger DOES NOT WIGGLE in the threads. If so take steps to fix it. Figure out a way to put a lock nut on the thing, or in extreme cases, get a longer bolt that will fit the threads, and put a lock nut out on the outer end of the body.
If you are only going to use it on one engine type, such as SB Mopar, just screw the plunger all the way in until it bottoms and locks "solid" and see how the length is. If it turns out to be too long, !!!!! Just saw it off, grind it "beveled" and smooth and remove burrs
I'm not saying the length I show on mine is "perfect" but it works fine for me.
IF YOU BUY a manufactured piston stop
Take steps to make sure that the center plunger DOES NOT WIGGLE in the threads. If so take steps to fix it. Figure out a way to put a lock nut on the thing, or in extreme cases, get a longer bolt that will fit the threads, and put a lock nut out on the outer end of the body.
If you are only going to use it on one engine type, such as SB Mopar, just screw the plunger all the way in until it bottoms and locks "solid" and see how the length is. If it turns out to be too long, !!!!! Just saw it off, grind it "beveled" and smooth and remove burrs
I'm not saying the length I show on mine is "perfect" but it works fine for me.