With an HEI distributer you:
1... Don't have to worry about Dwell
2... Don't have to set Gap's
3... Don't have to worry about condenser's.
4... Will get faster engine starts
5... Get cleaner spark Less carbon build-up.
6... Way less maintenence.
Points every 3000 miles gotta address them.
HEI,8mm wires, A set stock HEI plugs, you wont be bothered with distributer issues for at least 50,000 miles
A coil for a Points system produces 20,000 Volts and drops off at 4500 RPM
An Hei Coil produces 50,000 volts and drops off at 4500 RPM
A good MSD Super coil produces 60,000 volts and drops off around 6500 RPM.
Unless you like puttering around with your ignition system Go HEI. There are very good books on how an ignition system works at your local library and an HEI system is the only way to go!
Toolguy...You sound like an ad for hei dists!
4... Will get faster engine starts..
Not true unless the stock dist is malfunctioning!
5... Get cleaner spark Less carbon build-up.
Not true in ANY event!
An Hei Coil produces 50,000 volts and drops off at 4500 RPM
A good MSD Super coil produces 60,000 volts and drops off around 6500 RPM
Well maybe.. But only if needed.. Coils build voltage until the gap is jumped. A high compression high reving engine needs more voltage to make the spark.. HOWEVER in a standard Jeep engine neither coil will build more voltage than the stock coil before the gap is jumped. All that is needed to make the car run is a small orange spark. A blue spark can do NO MORE toward lighting the flame than any other spark..
YES race cars need more voltage. But in a Jeep, the Jeep doesn't know it is getting anything except a simple spark.
Please notice that HEI systems didn't become necessary until computers LEANED out the fuel mixture. It was found that the lean mixture sometimes didn't have enough fuel in the plug gap to ignite the mixture.. So the gap was widened
and a stronger coil was needed to jump that larger gap.
These coils do nothing exceptional in an older carbed engine..
You are correct on the maintnance however.. The price of a new system should be considered when thinking about maintaining the older system.. As there will be no other gain.
Big JIm <img src="/forums/images/graemlins/pfft.gif" alt="" />
