The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Anyone know what the computer in an 85 does?

Sniper X · 08-13-2009, 03:09 PM

All they were designed for is to try and get better mileage out of a carbureted truck with the carby. After the carb went to a TBI or injection, the computer took care of all sorts of stuff like anti knock, timing, spark advance, fuel rations and other stuff. Back then, all it controled was the HEI distributor. I feel if you bought a normal HEI and swapped it out you would be better off.

08-13-2009, 03:09 PM	#7
Sniper X Registered User Join Date: Aug 2009 Location: Albuquerque New mexico Posts: 169	Re: Anyone know what the computer in an 85 does? All they were designed for is to try and get better mileage out of a carbureted truck with the carby. After the carb went to a TBI or injection, the computer took care of all sorts of stuff like anti knock, timing, spark advance, fuel rations and other stuff. Back then, all it controled was the HEI distributor. I feel if you bought a normal HEI and swapped it out you would be better off.