Points to HEI Question ??
 

Going to get rid of my Points Dist And go to GM HEI. Is there any resistance wiring to remove no ballast resistor in system now ??
Is it going to be a simple change over ?

Re: Points to HEI Question ??
 

The power wire for points has built in resistance. Have to replace that wire for full 12vs

Re: Points to HEI Question ??
 

How far back to replace ? I imagine the source. Correct ?

Re: Points to HEI Question ??
 

When I did mine many years ago (pre-internet) I ran a 12 ga wire from the HEI to the bulkhead. IIRC, I used the IGN UNFUSED pin for power (lower right on the bulkhead).

Re: Points to HEI Question ??
 

Here's what you will want to do:

https://67-72chevytrucks.com/vboard/...d.php?t=708975

Re: Points to HEI Question ??
 

This is pretty much the exact thing I followed. Got the connector ends for the bulkhead at my local Napa along with the wiring wrap.

Re: Points to HEI Question ??
 

This! I did this a few months ago and it was a massive improvement. Don't forget to open up the gap on the plugs (.45-.60) and adjust timing advance.

Re: Points to HEI Question ??
 

12 AWG GXL Pink with Packard Electric (Type 56) terminals. You'll need about 4 feet to go from the HEI (bat +) to the firewall bulkhead. Simply remove the old wire (stainless steel did you know?) and plug into the same socket.

Also, remove that secondary yellow wire going down to your starter. It is no longer required. Was a resistance bypass when starting the car. Pretty common on old GM points cars.

Plugs should be gapped to .045" and wires changed to 8mm.

Also, avoid the Chinese HEI as these are complete junk. Find an old original GM dizzy from the 70's and it will work perfectly.

Re: Points to HEI Question ??
 

I think you mean .045 - .060 gap

.45- .60 is over 1/2 inch !

Re: Points to HEI Question ??
 

Hahaha, you are correct!