Welcome!! that's going to be a fun project! I've found this forum has a wealth of knowledge which has helped me quite a bit since acquiring my latest Cuda
I did this as well... and I am loving it so far, great light and lower draw on the system. I also replaced ALL other lights in the car with LED (dash, marker, turn signal/brake, reverse). everything is much brighter, especially the dash lights. I can actually see the gauges at night now
1970 Cuda .. how exactly do I get the bulbs out of the side marker lights in the front fenders? do I have to remove the entire light assembly from the fender to get at the bulb? I must be missing the obvious simple way to do it.