So what's the deal? Which carb is the right one?
MoBros and MoSis':
I'm rebuilding the slant six engine in my October of 1973 build date 1974 Duster 225 auto federal emissions non-a/c car. I have two carbs and am not sure which one is correct for my car. I've heard that both are correct, but I'm not sure and I could use your advice. The first three photos below are of what I believe is the correct carb for my car: a Holley 1945. This carb is the one shown in the fuel section of my FSM. Note the part number and date coding in the second photo - 3830402 dated 1624. The base has "Elkton 6609B" molded in it. I know this is not the original carb for the car due to the date code, but I think it's the correct one for my motor. The second five photos are of another carb that I acquired NOS. It looks different from the first carb, especially with that barrel thing projecting from the top (visible in the fourth photo). Note the part number and date code in the fourth photo. As you can see, the second carb has different vacuum fittings than the first, so it doesn't connect exactly to the existing vacuum hosing in my engine. In fact, the holes in the side of the second carb where the vacuum taps should be are filled in inside. You can see this in the fourth photo. So what gives? What is this second carb? Can I use it in my car? My FSM says nothing about this carb. Is it any better than my Holley 1945? How would I hook it up if the vacuum taps are missing and the holes in the carb body are filled in? The base of the second carb says "Elkton 2 12R 6223B". Any and all ideas welcome. Thanks!
MoBros and MoSis':
I'm rebuilding the slant six engine in my October of 1973 build date 1974 Duster 225 auto federal emissions non-a/c car. I have two carbs and am not sure which one is correct for my car. I've heard that both are correct, but I'm not sure and I could use your advice. The first three photos below are of what I believe is the correct carb for my car: a Holley 1945. This carb is the one shown in the fuel section of my FSM. Note the part number and date coding in the second photo - 3830402 dated 1624. The base has "Elkton 6609B" molded in it. I know this is not the original carb for the car due to the date code, but I think it's the correct one for my motor. The second five photos are of another carb that I acquired NOS. It looks different from the first carb, especially with that barrel thing projecting from the top (visible in the fourth photo). Note the part number and date code in the fourth photo. As you can see, the second carb has different vacuum fittings than the first, so it doesn't connect exactly to the existing vacuum hosing in my engine. In fact, the holes in the side of the second carb where the vacuum taps should be are filled in inside. You can see this in the fourth photo. So what gives? What is this second carb? Can I use it in my car? My FSM says nothing about this carb. Is it any better than my Holley 1945? How would I hook it up if the vacuum taps are missing and the holes in the carb body are filled in? The base of the second carb says "Elkton 2 12R 6223B". Any and all ideas welcome. Thanks!
