1.6 ratio rockers. Do they actually hurt the geometry??

Well said RamCharger. I have always used 1.6 rockers over the std. 1.5's, when I can. NEVER had an issue with the stability even @ 7800 . Never had to change pushrods when changing over to 1.6's. And yes it does as you say 'straighten' the terrible lifter/pushrod angle a few degrees that the small Mopar is blessed with. 'Straighter' means stiffer. Lift equals power. Makes little sense to have expensive ported heads if you don't get the valve open far enough to 'use' that expensive porting. The ACTUAL lift has to match the flow capability of the heads or you are leaving horsepower on the table.