5 port vs 7 port?
 

Alright i got a go engine. I have a sleeve for both a 7 port and a 5 poty. What do you recommend to go with. The track im on is pretty open a few jumps and one really big jump out of the corner. What do you guys recommend to run and why? Thank you for the help!

What are you going to run it in? If you're going to run it in a buggy and your track is wide open I would run it with the 7 port piston and sleeve. If your going to run it in a truggy the I would recomment to run it with the 5 port piston and sleeve. In my opinion, I feel the 5 port has a bit to much low end grunt for buggy.