i just rebuild a c4 transmission with a pa transmission rebuild kit. i having problems with low pressure in all gears but neutral. neutral is 5psi below the min which i thing is 55psi. the valve body is stock valve body with transgo shift kit (manual). i thinking its the front pump that is not working correctly but I'm lost and need some help. i have to rev up to get the car to move in reverse. i air checked everything and it check out ok. is it the valve body or the pump