65 GTO power windows wiring

[crustysack]

I have installed power windows and the fronts are slow to go up, the alignment seems fine so I will assume the motors are under powered. I am running a 4 way window switch located in my center console, this is powered directly thru the fuse box. I feel I need to add a relay (relays?)to get more power to the motor, my question is can I run just 1 30 amp relay to power the window switch or do I need to run 2 relays per window motor ?
It seems that all diagrams online point to 2 relays per motor does anyone have any pics of relay set up for power windows in an older muscle car?