How much did you pay for this autozone pump? Thats alot of pressure. Whats the volume on it rated at? Thats probably more important.

Bog at WOT can mean too much or not enough timing. Too much timing though doesn't really bog, its more like a feeling of holding the engine back. It could be pinging due to too much timing. Does it start easily?

Also who did your valve job on the heads? A poor valve job will really slow a car down. Are the seats hardened? What are you using for valve springs? Lifters replaced with the cam I assume? And I dont have any experience with regulators, but are you sure that its not the regulator thats malfunctioning?

As you've probably figured out from peoples responses so far TIMING IS IMPORTANT! The overall matching of the parts sounds pretty good though. haha