I found one and it is a black weather pack connector, is that what it looks like? or does it look diffrent? Where should the wires go if I tried to chase them? My car is a 86 Z28 and I have a 6 al hooked up to the dist. Thanks

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86Z28, GM 350, Jet perf Q-jet & chip Dual snorkel air cleaner, Edelbrock performer intake, Edelbrock headers, Edelbrock cat-back, Off road pipe, MSD 6AL, Accel Super Coil, Taylor Spiro-pro wires, Rapid fire plugs, Jet fan switch, World class t-5, Hurst Short Throw Shifter, Ram Flywheel, Center force dual friction clutch,Aluminum drive shaft, BW disc rear 3.45's & a posi, PBR calipers, Earls braided brake lines, Polygrapite bushings all the way around, poly tranny mount & torque arm mount, Hotchkis lower control arms & panhard rod, Rancho limiter straps, KYB struts & shocks, Gm Wonderbar, Edelbrock strut tower brace, SSM sub frame connectors, Jamex lowering springs, Carbon metallic brake pads, Crossed drilled rotors, Mobil 1 Tranny fluid & motor oil, GM syntheic rear end oil, K&N, Grant stering wheel, 1,200 watt system, Jet Black Paint, 91 Z28 rims, 92 wing, Tinted windows.

 

If they are in line, yes those are the ones. The go from your (depending if you have a knock sensor or not) ECS on the driver's side of the firewall to the base of your distributor.

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George P. Lara
1984 Z28
SCCA, SCFB, SC3GFB

 

The timing was at 6 before, but how come when I connected the wires the timing did not change? I thought it did that is why you discconectd it? thanks

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86Z28, GM 350, Jet perf Q-jet & chip Dual snorkel air cleaner, Edelbrock performer intake, Edelbrock headers, Edelbrock cat-back, Off road pipe, MSD 6AL, Accel Super Coil, Taylor Spiro-pro wires, Rapid fire plugs, Jet fan switch, World class t-5, Hurst Short Throw Shifter, Ram Flywheel, Center force dual friction clutch,Aluminum drive shaft, BW disc rear 3.45's & a posi, PBR calipers, Earls braided brake lines, Polygrapite bushings all the way around, poly tranny mount & torque arm mount, Hotchkis lower control arms & panhard rod, Rancho limiter straps, KYB struts & shocks, Gm Wonderbar, Edelbrock strut tower brace, SSM sub frame connectors, Jamex lowering springs, Carbon metallic brake pads, Crossed drilled rotors, Mobil 1 Tranny fluid & motor oil, GM syntheic rear end oil, K&N, Grant stering wheel, 1,200 watt system, Jet Black Paint, 91 Z28 rims, 92 wing, Tinted windows.

 

those four wires go straight to the computer,the ESC module on the firewall has ground,12v,knock sensor(blue),retard signal to ECM. the wires at the distributer are ground,dsi.reference signal,module bypass,advance signal from ECM.

 

Sometimes the timing won't change when you disconnect them. It really only changes the timing when the car is moveing,WOT,under load, etc... not at idle. It may advance it a slight bit, but not much.

Disconnect the 4-wire harness. You may have to play with the idle speed screw on the throttle bracket a little to keep the car running while you adjust the base timing. Then you'll have to back off on that screw once you plug it back in.

On the other side of the HEI, you'll see the 5 or so wires that go to power (heavy pink), a 3-wire pack (black ground is in the middle, can't remember what the other colors are) and a heavy brown (next to the pink) which goes to the tach.

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1984 z28 w/ a 357 cu in. monster engine which is looking like the posterchild for Edelbrock with the exception of the Holley 750vac... all the suspension stuff... 9-bolt posi disk is in...

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