I need to make a correction in my earlier post...the magazine was High Performance Pontiac (HPP), not Pontiac Enthusiast (sorry Don) as I stated. Dan built that 455 to '71 455HO specs (block is a YC from a '72 B-body) to meet the old "Certified" class at the Pure Stock Drags where your engine was inspected and certified to be legal per the rules and was reassembled under watch and special paint applied at the engine component joints to ensure no midnight changes. The cam is a custom 068 grind with a slightly tighter LCL (112), but measures 212/225/112 at .050" lift and max lift of .415"/.412". The compression is 9.49 static and it dyno'd at 412 hp @ 4800 rpm and 525 lbft torque at 3300 rpm. It liked 35-37 degrees advance the most with only a hp/lbft, or 2 at most variation between settings.
Dennis
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