black plugs - Team Camaro Tech
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post #1 of 9 (permalink) Old Mar 18th, 01, 07:47 PM Thread Starter
 
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i have never been successful at getting hei to perform like points, everytime i use it, the plugs get all carbon covered and are shot after a week, yes the wire to the fuse box puts out 12 volts, everything is new from the carb to oil pan, 454 30 over closed chamber 11.0 to 1 pistons, merlin oval port open chamber heads, 268 extreme energy hydraulic cam roller rockers, timing at 12 degrees btdc should scream, but its not quite there.
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post #2 of 9 (permalink) Old Mar 18th, 01, 08:47 PM
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I hate the word assume but the plug gaps are .045?
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post #3 of 9 (permalink) Old Mar 18th, 01, 09:36 PM
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Make sure your coil has a ground terminal inside the cap from the coil to the plug. It's a little bracket that bolts to the coil attach screw. It's a stamped piece.
That thing ought to outdo a point dist by a bunch!
David

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post #4 of 9 (permalink) Old Mar 19th, 01, 05:30 AM
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Are you sure it's not the carb being to rich?
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post #5 of 9 (permalink) Old Mar 19th, 01, 05:41 AM
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Just so I understand right, when you pull the HEI and put the points dist back in the problem goes away...

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post #6 of 9 (permalink) Old Mar 20th, 01, 08:01 AM
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are you using an MSD ignition with your HEI? i run the MSD6A with my HEI, you scrap the chip in the distributer and use the MSD to fire the coil. i have never had a problem with this system, and i have ran it on several of my cars. better check out that carb too, sounds rich.
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post #7 of 9 (permalink) Old Mar 22nd, 01, 05:38 AM
 
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If you can't be constructive don't post!

[This message has been edited by DjD (edited 03-22-2001).]
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post #8 of 9 (permalink) Old Mar 22nd, 01, 05:39 AM
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Let's not go there!!!

[This message has been edited by DjD (edited 03-22-2001).]
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post #9 of 9 (permalink) Old Mar 22nd, 01, 11:22 AM
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I don't know what is going on but I would like to try to help the guy. If you still have the orginal coil in the HEI they can still work but not really be right. It can cause your problem. Make sure your plug wires are good. They may be good enough for the lower voltage of a point system but when you use the HEI the spark goes everywhere except to the spark plugs. If you have good wires you can run .060 plug gap it tends to keep the plugs cleaner at lower RPM

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