I have a comp cam that was custom grind to the same specs. as the GTP6 cam. the specs are

Gross Valve lift W/ 1.6
Intake Exhaust
----------------------------
.568 .592

Duration at .050
Intake Exhaust
---------------------------
236 242

Lobe seperation 112.0

Part number and the grind number is LT1 3316 /3113 R112
serial No. v 1215

It has about 200 miles on it. It was just not right for my application. Was asking 200.00 but I will take 160.00 shipped...