Ok guys, I am looking for a little more pep for my 78 new yorker 440. I know all the wise guys are going to say the pistons are too far down in the hole and the compression is too low...blah blah blah, etc... What I want to know is what was different between the 195HP E85 and the 255HP E86 440's? The Chilton manual has them both at 8.2:1 compression. Again I have already read many times about that being optimistic. I don't care. I would like to pick up the 60hp difference between the two if it is easy enough to do. Allpar is vague and only cites a camshaft difference. I have read the 452 heads flow almost the same as the 906's. If the difference was only a camshaft would it be the 268/284 muscle car grind? Mainly I am looking for more low end torque and better mileage. I was thinking about a Comp Cams XE250H, or XE256H. Does anybody know what the stock camshaft specs are for the E85 440?