I have an '84 Mustang SVO MC with no adjustable prop valve on a car with 4whl discs (Versailles). I got the prop valve from the donor car. The car stops very well.
I also have a power booster from an '86 Mustang 4cyl car in it too. I wanted to make sure SWMBO would not need to worry about stopping. :biggrin:
Thanks. I was wondering about the aluminum/plastic versions. I want to get my car GOING this year. That's a good tip on the booster! I wasn't planning on power assit...but if I do, I'll know what will work.