Had another test today, seems that it isn't doing it all the time.. in the lower gears , 1,2,3 it seems to be ok most of the time. 4th,5th all the time. In the lower gears i mostly get 8psi holding. Sometimes i get 9.5 psi at the lower gears. Could it be leak at the amal valve pipes, amal valve not working correctly?

Little help please, thanks