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#2
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I ran AC R45TS plugs in my '72 307 motor. If your heads have tapered spark plug seats you can use the above plugs. I don't see a problem with running them with the HEI. Maybe the gap can be slightly larger w/ HEI.
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#3
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Open your plug gap to .045 for the HEI.
You made sure that your HEI had 12 volrs going to it, right? |
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#4
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For lower compression you can probably run up to .055", but there is no need. Voltage will be fine anywhere from .040 to .055. I personally gap mine to .045"
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#5
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10-4 on the 14 AWG from the distributor to the switched side of the fuse block
. I will be off to Pimp Boys tomorrow to look for some AC R45TS or maybe some Dinso U-Grove or anything i can fine that is in the heat range of a R45. By the way is a 43 hotter or colder plug? |
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#6
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The higher the number, the hotter it is.
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#7
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Doc here,
Don't forget to upgrade your Plug wires to an 8 or 8.5 Spiral core wires from the stock wires..or you'll have misfires, cross fires and RFI like a big Dawg.. Also assuming you removed the Ballast wire / Resistor from the circuit..else it will run like a muni bus if at all Doc
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