Re: 9:1 or 8.5:1
 

hahahaha...yeah...something like that. Sorry, i'm confused too lol.

Re: 9:1 or 8.5:1
 

Try checking out www.howthingswork.com. The CC's of intake do not change with different compression ratio's. They are controlled by bore and stroke. Those are the only things that can change the displacement of an engine. The compression ratio just lets you know how far the fuel and air are being squished down by the piston.