318 WITH CHEVY DISTRIBUTOR

RustyRatRod said

Davis is pretty expensive though. Skip White, ProForm, and a host of others also make them and well under 100 bucks.

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Rusty is correct. These are made by dozens of companies. Most overseas. OP's is not necessarily a DUI, and more than likely it is not.

Also, pending what brand it is, believe it or not, the caps and rotors are NOT always just an OEM gm replacement. I know this to be a 100% fact. The rotor tip position differs. And so does cap terminal ID.