How much will 70cc heads raise my compression? Also how much lift?

Heck I could actually still see hone marks in the cylinders the guy I got it from had pulled it out of a charger that he bought as a project car and he wanted to put a 383 back in it so that's what he did and I picked the 400 up for 275 bucks and a 2 hour drive off craigslist so the motor hadn't been ran much at all I don't think