I found the part numbers for the A500 adjustable OD and lockup switches.
2 number 15718 fuel safety cut off switches from NX Express. (one for OD and one for lockup)
Cheaper at Summit under part number NEX15718.
1 number A74439A 6-20lb adjustable vacuum switch for kicking out OD and or lockup under load.
These NX pressure switches are advertised as adjustable from 25-60lbs, but I have used them as high as 75 without any problems.
Be warned they are a little pricey.
Here's the vacuum switch.
2 number 15718 fuel safety cut off switches from NX Express. (one for OD and one for lockup)
Cheaper at Summit under part number NEX15718.
1 number A74439A 6-20lb adjustable vacuum switch for kicking out OD and or lockup under load.
These NX pressure switches are advertised as adjustable from 25-60lbs, but I have used them as high as 75 without any problems.
Be warned they are a little pricey.
Here's the vacuum switch.