flooding holley carb on '67 300 hp

[Gerard F.]

Re: flooding holley carb on '67 300 hp

Please educate me. How do I tell:
(1) whether I have a 3810 carb but someone in past has changed fuel bowls to ones with externally adjustable floats(my throttle linkage has the kickdown tab that I didn't have on a '66 with 3367 carb)or whether this is a 3367?
(2)How to find build date of my carb?
(3) Did absolutely no '67 300 hp's come with externally adjustable floats?

Thanks in advance!

William,

To answer your questions:

(1) It was probably common in the 1970's to replace the 67 non-externally adjustable float fuel bowl with the earlier adjustable float bowls, once they started leaking at the pressed in caps on the top and side of the bowls. I know this was an early on problem with mine until I replaced the carb with a double pumper in 1976 and trashed my original 3810. Even in those days, a replacement 3810 was pretty expensive, around $500 to $600, and a generic carb was about half that.

(2) The build date(at least the week) of the carb is on the air horn as PT indicated, Year-Month-Week in 3 digits below the List #. If you have 4 digits it is a replacement after 1972.

(3) As far as I know, there were no 3810 production carbs with externally adjustable float bowls. But I could be wrong

[Larry M.]

Re: flooding holley carb on '67 300 hp

Gerry:

That's a work of art......not a carburetor!!

Larry

[William F.]

Re: flooding holley carb on '67 300 hp

Thanks to all for the help. My carb is correct model and date but someone replaced fuel bowls with ones with externally adjustable needle/seats.
If I decide to get carb professionally rebuilt, who are some good rebuiders? Previous thread gave Mac Niesh and custom carb rebuilders-who else-anybody in the South where I live?

Thanks again

[Patrick T.]

Re: flooding holley carb on '67 300 hp

PT,

What's your VIN and the date on your engine stamp pad, we must be pretty close. The Vin on my 67 S/B 300HP is 22049 (June 29 by the book) and my engine stamp pad date is 0626. The reason I ask is that I just acquired a 3810 with a date code of 763 as in the picture above of yours, and am getting ready to restore it.

763- 1967 third week of June is just one week before my engine assembly and I'm wondering if it is too close. I'm wondering if any one has seen any Holley later, a 764 or 771. Maybe the 763 was the last of the batch.

BTW here's the current 3810 on my car, a 751 which I restored myself, plated or colored every part on it in my garage.

Jerry, my VIN is 22526 and has a car build date of July 9th. The engine date is 0703 (July 3rd); the dates are all very close like yours. Our cars must be cousins! So it appears our engines were built a week apart. Maybe the 763 was indeed the last of the batch, as I've never seen anything later. PT