Transmission problems all over the place !!

[Canadian1968]

I took the car for a little trip down the street for the first time since getting everything back together.  Just light acceleration the car will climb Rpm and just when it should shift it sound like it pops out of gear and the RPM will free rev.  IF I put my foot into more it sounds like it grabs next gear and will continue to cruise .  It will down shift, I can put it in low gear and everything seems to accelerate fine.  From a dead stop I can give it a little punch and it has no problem grabbing.  Reverse seems to be fine.   Coming back into the drive way I put it in park and it did not seem to want to engage, car would roll in park. Cycle threw gear and it will eventually engage. randomly.

The motor was pullled and rebuilt the Transmission and TQ were left untouched. Before tear down , transmission was working normally.

I do have an Edelbrock RPM manifold on the car.  But I belive I have all linkages (stock ) adjusted properly. IN the picture, #1 slotted rod is adjusted so it is at full forward movement and no slack to throttle lever of carb.  WOT throttle moves # 2 linkage (kickdown ?)  to full rear ward movement.

Gear shift selector was placed in park, full forward position and then tighten adjusting bolt on rod.

Fluid level is fine.

[Canadian1968]

Just wanted to add,  when I say down shift, I don't mean kick down, the car has not been over 15mph yet!  Possibly driven 1/4 mile