I think yours is the smarter way to go. Both will be reasonably close on hp, but yours will do it more reliably and for a lot more laps before needing the maintenance mine will need way earlier. I thought about having a billet block made as I won't be hot lapped where I will run it, but am too cheap to come off of the 10k for the block.

I can't wait to see what yours ends up doing on the pump both with the single and dual carbs. We're also putting together a 572" B1 engine with a Hogan s/m manifold, Fast XFI using two big Wilson throttle bodies and two dry fogger stages in a Spitzer car to run T/D and quick 8's locally. Curious to see how that plays out as well.

Anyways, got my fingers crossed for you on Monday and please keep us updated.