I don't think there is supposed to be a ball in the bottom of the plunger bore. There is supposed to be a check valve in the pump assembly itself. All the kits have two balls, one for the power valve and one for the accelerator output check valve.

1951 GMC 1 Ton Flatbed -- It is finally on the road and what a great time I have driving it!
1951 1 Ton Completed

My Chevy Master 4 Door is on the Road!