65fback
Well-known member
So.... I've had the car for a year now. I haven't had to touch anything with the carb or fuel delivery, other than when I pulled the head to replace the gasket because it was leaking oil. The car has progressively gotten worse over the period of ownership. When I first bought it the car was running nicely, idling, etc. First the idle started getting a tad rough (sounds like misses, I can feel pulses as well). The idling has gotten worse over the year. Finally over the past couple of weeks I've started feeling some of the same behavior under light load.
I'm thinking I should check the points, wires, plugs first. The plugs all looked decent when I pulled the head this spring to replace the gasket. But that was this spring. What else should I get into? I was also wondering if my carb has gone out of tune. It's a Holley 1940 replacement. The vacuum hookups are, um, nonstandard (?). I have a '65 with a '66 block. The distributor is the proper one for the year . Vacuum is ported off the manifold and goes to both the automatic transmission and the distributor. There is a vacuum source coming off the carb but it was blocked off by PO. I didn't muck with it when I first bought it because it was running and I didn't see a SCV on the 1940.
Any advice on where to start? I've been trying to read up here. I'm planning on breaking out the service manual tonight as well, but I've found YMMV there depending on the symptom, especially as it doesn't deal with the carb.
I'm thinking I should check the points, wires, plugs first. The plugs all looked decent when I pulled the head this spring to replace the gasket. But that was this spring. What else should I get into? I was also wondering if my carb has gone out of tune. It's a Holley 1940 replacement. The vacuum hookups are, um, nonstandard (?). I have a '65 with a '66 block. The distributor is the proper one for the year . Vacuum is ported off the manifold and goes to both the automatic transmission and the distributor. There is a vacuum source coming off the carb but it was blocked off by PO. I didn't muck with it when I first bought it because it was running and I didn't see a SCV on the 1940.
Any advice on where to start? I've been trying to read up here. I'm planning on breaking out the service manual tonight as well, but I've found YMMV there depending on the symptom, especially as it doesn't deal with the carb.