I checked a few of my factory shop manuals and the #1111150 shows good for a 1966 283 4 degrees BTDC, Vac 0@8, [email protected], centrifugal, 0@900, 7@1200, 16@2000, 28@4400,interesting it also shows for a 1968 396, but different vac and centrifugal. The one that's in it shows in my 1968 manual as a 307 Distributor Vac is 0@6, 15@12, centrifugal is 0@1000, 10@1600, 28@4300.

I'd go with the #1111150 even the 396 would be closer than 307. The 1967 Chiltons didn't have the other two numbers, so I'm thinking they would be even later with spec.s close to the 307. You should be able to check the centrifugal advance with a timing light and tach.

Larry

I don't own a vehicle that isn't old enough to drink.