The Ford Barn

Ol' Ron · 05-14-2024, 10:05 AM

Gene has it. The ignition system is governed by the engine load, and thus the "load a matic"/ his systen uses a special carb to supply the vacuum signel to the distributor and works well on a STOCK engine
The vast majority of the engine manufactures use the vacuum from the engine t determine the "advance curve". The advance curve provides the proper amount of ignition timing to the engine under ALL driving conditions. Such as puling aload up a hile or fuel mileage when crusing down the interstate.
When you modify an engine YOU have to consider what this curve must look like and is dun when TUNING the engine. This requires Knowledge as well as a AF metter for the carb and a timing light with a degree wheel on the crank ( apiece of tape with numbers onit). Starting with the factory numbers you can make adjustments for power and economy. And this requires Knowledge.
Gramps

05-14-2024, 10:05 AM	#9
Ol' Ron Senior Member Join Date: May 2010 Location: Chester Vt Posts: 8,985	Re: pertronix distributor Gene has it. The ignition system is governed by the engine load, and thus the "load a matic"/ his systen uses a special carb to supply the vacuum signel to the distributor and works well on a STOCK engine The vast majority of the engine manufactures use the vacuum from the engine t determine the "advance curve". The advance curve provides the proper amount of ignition timing to the engine under ALL driving conditions. Such as puling aload up a hile or fuel mileage when crusing down the interstate. When you modify an engine YOU have to consider what this curve must look like and is dun when TUNING the engine. This requires Knowledge as well as a AF metter for the carb and a timing light with a degree wheel on the crank ( apiece of tape with numbers onit). Starting with the factory numbers you can make adjustments for power and economy. And this requires Knowledge. Gramps