Factory with hydraulic valve gear they pull to around a 5500 before power starts dropping off..there are plenty around though that have a redline closer to 6500
Peak powr was claimed to be at 5600 rpm, but a set of solid lifters and a roller cam and the worlds your plaything!
67 RO23 clone with 6.1 SRT Hemi and dual quads. Soon to have Drag Pak induction and Throttle body.
