Holley carburator

[bobfist]

Hi!

Im looking on a stock replacement Holley carb that was installed on 383 engines 71
I have the stock 2951666 intake and the carb is  list-6515 so its correct.
The problem is that i see on the photos that the second throttle plates are slightly bigger.
Does this work anyway, the carbs was installed on these engines back in 71, just wondering if anyone knows?

[469 runner]

Yes, that is correct. I believe the primary bores on those were 1-9/16 and secondary 1-11/16. They were 4160 based carbs.  Holley was a OEM supplier of carburetors for many make during the musclecar days.  They were good units but watch out for warped bases and metering blocks.  Parts to rebuild and tune are the same as any carb. in the 4160-4150 family.