picture of inside of a Pertronix dist.

Bob Jasinski said
I have the Pertronix Ignitor II, 91385LS installed in the stock dual point IBS 4013 dist. No problem with installing it, seemed to fit just fine. The engine is not in car yet, not been started, so I can't comment on how it performs.

Below scans are from page 35, Road & Track April 1965, (full page and a close up). Even though this is a black and white photo, the scan indicates the '65 FS 273 came with a tan dist. cap from how light it appears, (similar to washer bottle). You can also see the small hose (painted red) is a different shade than the black radiator hose above it.

View attachment 1716334082

View attachment 1716334081

Thanks for the info. I'll give 91385LS a shot. even though Pertronix website says it won't fit my 65. My engine is coming out on 12/9, figure it's a good time to do some upgrades.

I wonder if different setups had different color caps. I have the original air cleaner with the CAP nipple, I notice this car is a closed canister.