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This has probably been covered but I can't find a simple answer. I am old school regarding cams (push rod) so here is are my questions. The cam specs for the 5.8 GT500s show to be
Duration 242 degrees intake, 247 degrees exhaust
Lift 11.18mm (0.439-in) intake, 11.48mm (0.451-in) exhaust
Are those duration numbers gross duration or something similar or are they @ .050". I am assuming the lift is at the valve??
Anyone know the lobe separation and centerlines?

Thanks guys!
 
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