I am considering buying a stroked, bored, B16 motor that has some crazy piston/head setup that make the static compression ratio 13.1:1 or 13.4:1. I'm pretty sure as the static compression ratio increases, power increases across all rpms, so this motor should definitely be more powerful than your average B16. Here are my questions: 1. What is the maximum compression I can run on pump gas (93 octane)? I don't want to buy racing fuel or add a quart of something every time I fuel up. 2. Can I supercharge a motor with this high of a compression? 3. What exactly is the difference (in power, fuel use, anything else you can think of) between: a) a NA motor with high compression (eg. 13:1 compression) vs. b) a supercharged motor with a lower compression (eg. 9:1 w/Jackson Racing supercharger) I've been researching this for about a month now...if anyone has links to the topics above (or a damn good explanation of static & effective compression ratio and the effects on fuel required, boost allowed, and power output), I would appreciate it if you posted those links. Thanks for your help.