904 shifting problems

The trans is stacking gears when put in drive.
I am running a 904 behind the stroker, it is freshly built, 3500 stall (9 or 9 ½) converter. The trans has a B&M shift kit. I have Lokar type cable for the throttle pressure, I have played with it to get it to shift right, and when it was set where it would shift ok, it limited my throttle travel. I dropped the tranny pan and adjusted the allen head screw with the spring pressure on it. (The name of the screw slips my mind) I have had the pan off two times trying to set the correct pressure, and the trans is still staking gears, and will not downshift when the pedal hits the carpet. I’m at a loss as far as what to do now, could it be internal problems in the valve body causing the shift problems? Any advice would be great