its a 350 bored .040 over, flat top pistons, stock vortec gm heads, comp 12-211-2 270h magnum cam, gm performance dual plane intake, dont have a carb picked out yet so we will say quadrajet or maybe a holley 750 dp, headers. Im in the middle of building this motor so everything hasnt been bought yet.

 

You could use comp cam cam selector which will give you a slightly inflated hp estimate since you are using a comp cam. I downloaded it off there site for free. You might want to list which parts have been bought and which ones haven't so some of the really experienced people can streer you in a better direction if nes. Also the intended use will help out any suggestions.