Been driving lots of different +600hp street cars for years, and the ticket to having an engine like that and still enjoy it on the street is, TORQUE!..or overdrive which is the route I went on my last hotrod. Build the car with milder gears so its not anoying to drive, and build a motor that idles with what your willing to live with and makes lots of torque and will peak where you want to shift it, not neccessarily where the heads peak like a race motor. Hemis have always been king for moving big heavy cars...Just look at all the SS ones, wedges are in the 10's, hemis are in the 9's...

Personally, I hate wedge motors. I could care less if I ever worked on one again. I like having skin on my hands after pulling plugs after a run...So for me, it would be a stroked Hemi, small block or big block..They are very potent.

The enjoyment comes from reliability in the valve train, and the street manners of the car. One note though, an 8-3/4 will not live more than the first full throttle hit with a set of drag radials and +600hp.. We broke 4 of them last year in our Hemi Charger street car on drag radials...And a host of other parts. When you make big power, stock parts don't live long, and torque will always find the week link.