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Username Post: Carb tuning question.        (Topic#351532)
"8th Year" Silver Supporting Member
Posts: 926
Loc: So. Prairie Washington
Reg: 03-03-11
06-11-18 11:30 PM - Post#2736673    

Has anybody ever drilled a hole in the exhaust system, welded in a fitting for a O2 sensor to set the carb ? You could always remove it and install a plug. Doable, practical, what do you think ?

1951 2 door Deluxe Bone stock, well not quite, bucket seats.
Broken hearts and dirty windows
Make life difficult to see
Thats why last night and this morning
Always look the same to me
John Prine


Bel Air kiwi 
"3rd Year" Silver Supporting Member
Posts: 4286
Bel Air kiwi
Loc: New Zealand
Reg: 04-24-14
06-12-18 01:38 AM - Post#2736674    
    In response to 2D51STYDLX

Hi Roger, Yes I have one on my carburetted 306W in my 32 Tudor. As the headers were always going to be Ceramic coated I put the bung in before they were done.

It could be used for mixture setting or if vehicle was later converted to EFI. The headers were expensive block huggers that had to be modified to fit better so it was definitely worth doing before they were coated.

I have never tried to grind off that HPC ceramic to weld something but I bet it would be nasty and never look right afterwards.

Mine just has an old sensor as a plug. But I guess you could use a bung. Position is important so do a bit of research.

Cheers Kiwi

48 3100 RHD, 51 Deluxe 4DR RHD, 51 Bel Air parts car, 52 Bel Air P-Glide LHD. Others 23T, 32 Tudor, 58 Edsel pacer 4DR HDT, 79 F250 351C RHD. 69,70,82 Capri. No mobile, no TV, and no Jap cars.

"They made a desert and called it peace." Tacitus

Edited by Bel Air kiwi on 06-12-18 01:40 AM. Reason for edit: No reason given.


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