Called the shop that did our rebuild and they said to use plugs for a 69 400. So we'll try Autolite 86 plugs and use stock replacment wires. They said to gap the plugs for HEI. All we could find refernce on is .035 gap but beleive that is for a points type distributor. Would HEI be a different gap? More like .045? or even .050? Thanks for the suggestions
