Ultimate daily-driver Gen II A Body to build

I would love to do something very similar, maybe not to the extent of 400 hp, but something with great reliability and mpg. Modern upgrades to handling, something that could be driven in our winters up here.
Lets hope ideas keep coming and the chest thumping is kept to a minimum

The 400 hp with reliability should not be a problem for a 12-pound/boosted /6 with a 5,000-rpm limit, and 18 degrees of spark advance. A 93-octane motor.