273 head choice ?

How much power you looking for stock heads are good for about 300 hp mild porting get ya 20 hp more. I’d go with milled 1.88 valved 360 your gonna need less cam to get to get the power and be more overall streetable. As long your not shooting too high. 300-350 hp.
Don’t forget 273 are gone need to rev to reach those numbers.

Your not gonna find too many 273 builds look at 2v 4.6l ford builds for something you want and translate it to Chrysler parts.