thats easy.... im quite sure its as fast as yours so go for a drive and pretend it gets 30 mpg......
Had a big grin reading that

Likely is as fast, if not faster (yours). As mine sits I am not 100% sure on HP & TQ. It was 473 HP & 416 TQ without the windage tray. Add (about) 10 HP with it (was put in after the dyno pulls) Not sure if it would change the TQ ?
For over 500 HP all I do is change the 750 dp to an 850 dp Holley. Engine builder says he chose the 750 for better street manners. I'll see about that, as I will be picking up an 850 to see for myself.
After I get the car all back together (next summer) I'll do another dyno run to see what is getting to the pavement.
Goal was for 450 + HP at the ground. If it is below that, next winter the motor will be pulled & re-built.
Plus yours is likely 400 +/- lbs lighter ?
But I'm an old school V8 guy. I have never had anything to do with turbos.