I copied this from another forum.

The below color codes are:

Green: Baseline with camel back cylinder heads and a very, very old solid flat tappet grind back from the 60's or 70's (230/230 area) (Goes to show you how far they've come in cam technology and how these new grinds really help make some power)

The Camel Backs had previously received a competition port job by Mike Stark @ CFM performance and had 2.02/1.60 valves.

Grey: Camel back heads 62 cc chamber- with Hyd roller cam 230/236

Blue: Dart Pro-1 Platinum 200 cc aluminum cylinder heads 65 cc chamber(Cost $ 1460)

Pink: AFR 195 "street" port aluminum cylinder heads 65 cc chamber (Cost $ 1485) (These are not the competition ported AFR cylinder heads)

Conclusion: Considering those old Camel Backs are decades old, they held their own against the Dart Pro-1 Platinums (Good job Mr. Stark and CFM performance)

The AFR's did very well...... and its reported that the competition eliminators would have made another 30 HP on top of the 490ish they show here.

 

For those interested here is a link to the above thread.

http://www.speedtalk.com/forum/viewtopic.php?t=14097