No probabaly to it. I would be willing to bet that the 'expert' pulled stock timing specks and set the engine to that. (For no other iditiotic excuse than to say you need to start with a base number.) Stay away from dyno guys; all they'll do is take your money and give nothing in return. Also the money you piss away could be spent on whatever repairs/improvments/upgrades on your car.
I won't make a blanket statement, but there are some general themes. For instance, Pontiacs are known for valve stem seals drying out and failing fairly fast. Some of the quickest failures are on engines that have new stem seals, fired a couple of times, then allowed to sit for a year or so. Happens every time.
