I'm trying to do some Desk Top Dyno work on the Modular 4.6 and 5.4. I can't find the valve events, duration, lobe seperation, lobe center lines (intake or exhaust), or lift anywhere.

If anyone has cam specs please help me out.

Thanks,
Ben

 

The 99-up will be different from the 98-back. They cams changed with the PI heads.
You might try the CompCams website. They can probably give you the info that you need since they make larger cams for these engines.