318 build

I have a friend with a 85 Dodge D100 with a pretty strong teen. KB167s, 302 heads with 360 valves, Comp 268S, Holley 570 Avenger on a Holley street dominator. I am fixin to do one similar but mine will have that MP oval track solid that's 509/238 @ .050" on 106 LSA. I am gonna use a 71 340 intake and you guessed it....a thermoquad. Might be a little too much cam, but we already have it so that's one less thing to buy. Plus, it'll be a nasty soundin little *****. The truck has an OD 4 speed so that 3.09 first gear will help bottom end. He is bein kind enough to help me build this truck so I can sell my Ranger and get out from under it. With the compression we're figurin combos like these are good for 325 or so HP. Desktop Dyno said 368 on my build but I think that's optimistic. ;)