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Vacuum advance HEI? what years to use?

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Old May 8, 2001 | 11:02 PM
  #1  
clemsparks's Avatar
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From: Columbia MO
Car: 1983 Z28
Engine: 350
Transmission: WCT5
Vacuum advance HEI? what years to use?

hey,

I'm wondering which year of hei I can use to match my non cc carb. Will one work as long as it's a vacuum advance one? or do I need to make sure it came from a non cc car or truck? the reason I ask is because I see them on ebay with the vacuum advance but they are from vehicles that were produced after '82 which is somwhere around when I figure all the vehicles would have computers

little help?

thanks


------------------

Clem
SCCA TransAm Series Race Mechanic/CrewChief
-------------
1983 Z28 with LG4, 5 speed, and (unfortunately) T-tops
1983 Z28, NO T-tops, (unfortunately) Auto Transmission---FOR SALE---
Looking for a V8, preferably 4 or 5 speed Camaro with NO T-tops (wanna trade?)
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Old May 8, 2001 | 11:44 PM
  #2  
SUPER-SPORT-CHEVY's Avatar
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Joined: Mar 2001
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From: Pueblo Co usa
Your best bet it mid 70's. Most distributor from trucks into the mid 80's "carbed" would work also. The only catch is some trucks would have a vac advance and electronic spark controll on the distributor "which can be disabled by unplugging" but some had the same comp BS that is on our cars.
Kinda confusing unless you know what to look for. It would probably be best to buy a new accel performance distributor 120$
Confusingly
SSC
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Old May 9, 2001 | 08:46 AM
  #3  
five7kid's Avatar
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
You need to make sure it came from a non-CC vehicle. I can vouch for the vacuum/mechanical advance WITH computer, have it on my '84 van.

The new unit is a good idea. The stock module dies at 4500 rpm, the coil isn't anything to write home about, an adjustable vacuum can is a nice thing to have - get a new Accel or Pertronix unit.

------------------
82 Berlinetta, orig V-6 car, now w/86 LG4/TH700R4. 2.93 limited slip. Cat-back from '91 GTA, Accel HEI SuperCoil. AMSOIL syn lubes bumper-to-bumper. Daily driver, work-in-progress (LG4 w/'87 LB9 block, ZZ3 cam and intake, World 305 heads, Hooker headers & y-pipe, 3" Catco cat & 3" cat-back).
57 Bel Air, my 1st car. 0.030 over 396, 9.7 CR forged TRWs, Weiand Action+, Edelbrock 1901 Q-Jet, GK 270 cam, Magnum rockers, Jacobs Omnipack, 1-3/4" Hedders & 3" Warlock header mufflers, TH400 w/TCI Sat Night Special conv & Trans-Scat shift kit, 3.08 8.2" 10-bolt w/Powertrax, AMSOIL syn lubes bumper-to-bumper. Best 15.1/94.6 @ 5800' Bandimere.

[This message has been edited by five7kid (edited May 09, 2001).]
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