I have finally resolved the issue! I was able to dial in the pressure to the valve and clock the meter. The furnace now runs within spec and no longer over heats!
In the middle of July I had my parents bring in the HVAC guy (who installed system) to shut off the low speed on the main blower. It was costing a lot to run the motor 24/7. I believe he's tampered with the gas valve to create a service call in the fall when the house switches from A/C to Heat. I had to dial back the valve 2.5 turns counter clockwise (it looked bottomed out)!! This furnace has run flawless for 24years, for it to be out that much sounds fishy! The only change was having the original guy who installed it come in and make adjustments to the blower wiring. When he was called to investigate issue in the fall he wasn't interested in fixing the problem, but wanted to install a whole new system!
If I could buy you a beer I would! I really appreciate your expertise and advice!
Till next time!