440” small block, pump gas, street car...

I wouldn't doubt that it's pretty stout down low, that 4.25" crank is going to help. His cam's duration is bigger than mine, 263/271 @.050, 108, .711/.719" and I'm running 11.2-1 compression. My 434 is a monster everywhere.

I'd be willing to bet he could run almost, or maybe 1 more point of compression and be okay on pump gas.

I have a similar duration and a bit less lift cam that Bullet ground for me and my plan was to change that, get the compression up to 11:5 and go EFI but didn’t have the spare coin at the time. Now that it’s in the car and running I’ll do that stuff next year.
To Dons point about the converter, he’s right. But I threw in a 10” TA that I had on the shelf after conferring with them. The car needs an 5000 8” and a 4.10 gear to be optimal but both of those areas are a big compromise for street drivability.