What rear gears are in the car? I ask because performance upgrades will inevitably decrease torque and driveability. Make the motor too peaky and you'll need some tall gears just to be able to drive around.
Sorry guys, I guess I could have phrased this differently, just had visions of an overcammed motor that was a total slouch until just before redline
IMHO milling the head is probably a waste of time and effort.
Didnt realize milling .100 was possible on these heads:oops:
That being said it was free so maybe offset milling the rod journals would be good practice for you and put your pistons further up in the hole.
This would be a no cost mod as he said he's in machine school, but I wouldn't have suggested it if I was aware 170s were "zero" deck