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40 Deluxe · 10-23-2011, 11:55 PM

newshirt (post #4), are you mad at your car? Why else would you run it at full retard?? At 7,600 ft, you need significantly more advance for a given speed and load than at sea level (combustion is slower because the air is thinner so you need to 'start the fire earlier'). Does your exhaust manifold look like it's been overheated? You can bet it's glowing red hot when run at full retard. Give it some advance!

10-23-2011, 11:55 PM	#16
40 Deluxe Senior Member Join Date: May 2010 Location: now Kuna, Idaho Posts: 3,835	Re: Model A in the mountains newshirt (post #4), are you mad at your car? Why else would you run it at full retard?? At 7,600 ft, you need significantly more advance for a given speed and load than at sea level (combustion is slower because the air is thinner so you need to 'start the fire earlier'). Does your exhaust manifold look like it's been overheated? You can bet it's glowing red hot when run at full retard. Give it some advance!