[7000rpmisheaven]

I'm no expert but if I was building a blower motor especially one i would like to run 14-18 lbs. of boost I would want a lower compression. I would keep it between 8.0 and 8.5. 18 lbs is alot of boost. If you calculate the theoretical displacement it is about 760 cubes. And a shot of nitrous on top of that. I agree with smokedawg the stock block might not be the way to go. Maybe a 351 would be more suitable. You said you want it to be a daily driver also. This is just my .02