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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: jo3y1nf4nt3 on November 28, 2005, 10:00:00 am

Title: HEI question
Post by: jo3y1nf4nt3 on November 28, 2005, 10:00:00 am
i was talking to a guy at work and he got me to thinking about getting a vacuum advance dist. instead of my HEI i have.  i'm no buff in distributors so here it is....current dist. is out of '84 z-28 305 (l69)  it has 4 wires in one connector and 3 wires out of another connector.  (1 may be for my aftermarket tach i installed years ago)  what do you guys think about my setup or which way is best.  thanks.  


Title: Re: HEI question
Post by: roundedline on November 28, 2005, 10:36:00 am
The '84 Z28 distributor should still have vacuum advance, so I am not really sure what you are asking.

Chris Lucas
www.73-87chevytrucks.com
www.captkaoscustoms.com
Project Su
Jimmy 2WD Project

Title: Re: HEI question
Post by: jo3y1nf4nt3 on November 29, 2005, 01:36:00 pm
i don't have an actual vacuum diaphragm thing ON the dist.  but i did notice that 2 of the wires that go under the dist. cap are conneted (on the firewall) to a plastic thing that has a hose hooked up to it.  from there i'm not sure where it goes.  so does that make my hei a vac. advance.  noted that the truck came equipped with the 292 v6 ('86).  thanks.  


Title: Re: HEI question
Post by: roundedline on November 29, 2005, 02:54:00 pm
I think you need a non computer interface HEI out of a pickup.

Chris Lucas
www.73-87chevytrucks.com
www.captkaoscustoms.com
Project Su
Jimmy 2WD Project