Thanks or the info! Im leaning toward a 4 port for sure. I would love to play with a turbo motor but this is the first rotary I've ever played with so i wanna keep it kinda simple the first time. After i learn the ropes I will look into turbos. Anyone know were I can find a list of years,makes,models that came with 13b 4 ports? sounds like it might be the best place to start! lol Thanks for the reply! I was starting to think no body would