Oh, the 16.06 at 82.6mph included all the engine mods above it, Langdons, Offy/390, 194-204 cam, lump port head / valves.

So the 0.9 sec gain was just from the 200-4r.

A powerglide 3.08 is like launching in 2nd gear - great for consistency, but not so good for E.T.'s - the old adage, "races are won or lost in the 1st 60 feet" which is not where the powerglide shines.

Thanks for your comments about the Gonkulator.