So what dynamic compression ratio calculators are you guys using. Ive found two. One wants cam timing abdc +15 degrees (55+15=70) got me at a dynamic compression of 8.73 . The other wanted cam timing only abdc (55) which got me at a dynamic compression of 9.77. Donno which is right, which is wrong.

Also i also would like to know the accuracy of the desktop dyno 2000 program. Threw my set up on there.

412 (400 , 030 over , 3.8" stroke)

AFR 220 Heads (used the race ready flow #s)

Solid Roller Cam
264/272 @.050
649/649 lift
107 LSA
29 btdc 55 abdc
67 bbdc 25 atdc

Super Victor Intake (single plane)

11.41:1 static compression

950cfm carb

Large Tube Headers/Open Exhaust

Threw it all in and it came out to what i expected, but thing is i dont want to get my hopes up. Still sounds like you guys are mixed on the accuracy of this program (atleast the older versions) so would like to know if you guys think its realistic or if somebody has an updated version of this program or a better one if they could throw my set up in there.

609hp @6500rpm
542ft-lbs @ 5000rpm

Thanks fellas appreciate it.