Re: poor dyno numbers from 408 :(
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
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65 Fastback 91 roller 306, H/C/I
AOD-Bauman, PI Stallion, 4.10's and traction loc
04 Grand Cherokee Freedom Edition
79 Ford F-250 4x4 - Restored
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