I'm in need of a cylinder for my 89 250r and am not sure who to go with. So far I have a ESR trx6 pipe and silencer, delta v-force reeds, k&n filter, and a 38mm carb. I'm gona be racin the gncc and have heard that a powervalve motor would be good. What about just a regular 310. I've done a lot of research but still havent figured out what or who to go with. I'll leave it all up to you guys on this one.

 

i have a 310PV on my 250R and it provides so much power and torque not to mention the bottem end power. the guy i got my 250R off of told me that is a 310PV , but i'm not sure who it's made by, i'm pretty sure it's by Baldwin.

good luck man and since you live in NY we might see each other at the gncc races sometime.