were can i get a really high compression piston and hwo much can i expect to pay for it?

 

Lots of places offer pistons with varying compression ratios. Most on-the shelf pistons run up to around 13.5:1 compression ratio. Expect to pay around up to $100 for a piston, rings, pin, and cir-clips. Powroll offers a 273cc kit, bigger piston up to 13.5:1 and the required other parts for ~$310.00 www.powroll.com