Austinc10727

I have a 76 c10 I'm currently building a motor for its a Goodwrench 350 rated at 250 horse, I'm putting a set of ported and polished 416# 305 heads with screw in studs and pushrod guide plates, lunati voodoo .262/.268 cam with around .469/.489 lift and the matching hydraulic flat tappetlifters, motors also getting a set of 4vr -6cc flat top pistons std bore, procomp roller rockers and the crank has been shaved 20 on the rods and 10 on the mains, I may or may not go to forged rods, I will also likely be running an edelbrock preformer of some sort with an edelbrock or demon csrb, all of this being said I was wondering what a ball park estimate of the power I'll be making would be