Quote: The 6.1 HEMI stuff is awesome no doubt. But, they are limited cubes and valve lift.
Cubic inches are not a problem 426 and 440 motors are getting common. Bigger will be coming soon also. Getting a better lifter and rocker assembly is the key. And from working on the new motors I can tell you first hand. I would not want to be the poor sucker stuck trying to adjust valves on one of these....trust me. It will suck.
The power we can make with a 223/227 on a 114 with .557 lift is enough to make a 4300 lb car go 11.50's and faster. Take 1000-1500 lbs out of the chassis and you suddenly have a stupidly simple car that goes sub 10's in the right chassis.