well im finally going to be finishing my motor buildup. 64cc Edelbrock heads, my current Probe Industry pistons - this will give me approximately 10.26:1 or so Probe says. Hardened Pushrods, 1.5:1 roller rockers, ARP bolts all the way around. Micro-polish the crank. everything to be balanced - again. i know im forgetting some stuff here but im hoping to achieve around 350-400 hp. does this sound unreasonable?

Not unreasonable at all. One horse per cubic inch is not that hard to achieve. Have fun with 'er. :cheers: