Car won't run past 60mph

Next I couldn't leave well enough alone so I decide to fabricate some tools so I can adjust the line pressure and throttle pressure. First was the line pressure I made sure I adjusted too factory spec of 1-5/16". But i couldn't leave it factory so I cranked the pressure up a little and settled at 1.25". I know this is a base line setting and really needs to be checked with a pressure gauge on the port. I don't have one so lets see what happens. linepressureadjustment.jpg