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Old 05-17-2017, 07:04 AM   #26
sackracing
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Re: HEI Conversion

It starts fine and runs decent in the throttle, it's mostly just idling thats erractic
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Old 05-17-2017, 07:04 AM   #27
Toms67
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Re: HEI Conversion

Yes they are a nice upgrade. I want to get one for my boat. I put new points in it last year. Was in a hurry. But going to order one this year. I don't want to get stranded out on the water.
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Old 05-18-2017, 10:47 PM   #28
Steeveedee
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Re: HEI Conversion

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Originally Posted by sackracing View Post
It starts fine and runs decent in the throttle, it's mostly just idling thats erractic
Then it ain't yer points. Check for vacuum leaks with a spray can of carb cleaner. When the idle goes wild where the spray hits, you will have found the vacuum leak.
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Old 05-18-2017, 11:05 PM   #29
firedemon
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Re: HEI Conversion

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Originally Posted by 68 TT View Post
With an HEI you want as much voltage to it as possible. The performance difference from using a fused terminal on the stock fuse box to a direct battery source that sees full alternator output voltage when running is hard to believe. Well worth the little bit of effort to set it up that way from the start.

Getting the power for the HEI from a full battery voltage source supplied 30-amp relay is the way I like to do my conversions. Use the stock resistor wire to actuate the relay. This way it is sure to get power during the start and run cycles of the ignition switch.
mad also recommends to wire with a relay and use stock point wire to power the relay
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Old 05-19-2017, 10:56 AM   #30
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Re: HEI Conversion

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Originally Posted by firedemon View Post
mad also recommends to wire with a relay and use stock point wire to power the relay
Probably to -trigger- the relay, while using a 12V battery source to -power- the relay. That'd make sense.
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