I used to make them with a 3-4" long 1/4" nipple, 1/4" pipe tee and two short 1/4" nipples for the handle. Drill a hole in the tee for your thin blade screwdriver to go thru and file/grind the two bumps to fit the locking screw on the TQ air door.

Worked great at hardly any cost. Hardware store or McMaster-Carr will have the black iron pipe fittings.

1970 FE5 Duster 360/904/3.91's SOLD 1973 TB3 SpaceDuster 340/4spd/4.10's SOLD Moparless for now but when the opportunity is right I'll have another one.