you might contact these folks
link

I sent mine off about 2 yrs ago to them, all I did was bolt it back on and it has ran great ever since.

they were easy to talk to and answer all questions, I think I paid about 60 bucks plus shipping,, has been awhile but they treated me right,, mine was for the rocherster carb on my 235,(58) on my 52, seems like ever body hates them but mine has ran great.. good luck

Redryder pix
My Hotrod
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