Don't know if I fully understand this, but if factory BS is at play, no better option than a big Ford. A thor headed ford, would dominate any manufacturer. Chevy and mope would be way behind if there is something other than just anything goes.

For a mope, I still haven't seen anything better than a good set of predators. Better than any hemi NA that I've seen so far.

I've been playing with a pair of mechanical injected blown hemis in two cars, and have let my predator motors languish. I'm building a 4.9 bs noonan and having the second frame rail added to my stratus to deal with it. My plan is to take the 660 nitrous predator in it now, and make it NA single 4 over the winter using a get'm carb. I'll post progress as it goes.

What is this class you guys are talking about called?