The Ford Barn - View Single Post - 1955 F-100 5.0L timing

craig · 12-02-2021, 11:18 AM

Take a look at factory specs on any Ford, GM or Mopar from the 60's. The mechanical system was good for 12-16 degrees, add that to the base timing from 2-12 degrees and you had from 14 to 28 degrees total mechanical advance. Many early vac advance cans from Ford were adjustable either with washers/spacers or an allen wrench. Ideally 38 degrees grand total will be cleaner, outperform and get better mileage than the missfire that is created with 50 degrees. Put the vehicle on a chassis dyno and watch the hydrocarbon level climb at 50 degrees

12-02-2021, 11:18 AM	#9
craig Senior Member Join Date: May 2010 Location: The Inland Empire of Washington State Posts: 368	Re: 1955 F-100 5.0L timing Take a look at factory specs on any Ford, GM or Mopar from the 60's. The mechanical system was good for 12-16 degrees, add that to the base timing from 2-12 degrees and you had from 14 to 28 degrees total mechanical advance. Many early vac advance cans from Ford were adjustable either with washers/spacers or an allen wrench. Ideally 38 degrees grand total will be cleaner, outperform and get better mileage than the missfire that is created with 50 degrees. Put the vehicle on a chassis dyno and watch the hydrocarbon level climb at 50 degrees