poor dyno numbers from 408 :(

[rwhite65]

ok, here is an update. The thing was hot starting pretty bad, so I backed it off by ear a little, then threw the timing light on it. It is around 10-12 degrees initial timing. So then I have my buddy start to slowly rev the motor, nothing. Now on my mustang (65) with a vacuum advance, if I rev the engine while timing it the timing mark advances rather quickly. This thing, doesnt budge...slowly reving it or giving it a little quick blip. So, who is running an MSD distributer or 6AL. There is no vacuum advance on this thing, so what of those two parts does it? I do not think this thing is advancing at all. I have never ran either one of these products...so I am kinda at a stand still right now.

I am attaching the dyno sheets this time. From the sheets, I am leaning towards the power valves. Am I way off here? Anyone runnig a 408 or close to that? Can you give me a baseline for what the jets should be in this thing.

thanks guys,
Ryan