Compression Ratio

Post #41, correct, not much gain. Probably measurable on a dyno, but the butt-meter is unlikely to feel it. So if you have the parts already for a 8:1 engine, the decision becomes: is it worth spending more $$ for a one point increase in CR that might not be felt. The higher CR will help with idle quality/vacuum if you increase cam size, but then again if this is just a cruiser & the cubic inches are going to do the work, it would be fine with the lower CR & mild cam.