hey guys i have a stock carter on my 68 Cuda 383 the 2 air / fuel screw are plugged with soilder. but i have one large screw. is this a air / fuel screw? if it is do i adjust it like an standart air / fuel screw? thanks
Yes that is the idle enrichment adjusting screw. Had one like that along time ago.
I thought how strange myself when I didn't see two screws. I think mine was a older
early 60s carb though.
so i adjust it like a normal air/fuel screw? thanks
moper and RRR are right...this particular setup adjusts opposite to the normal 2-screw setup....backing out allows more air, leaning the mixture...screwing in restricts the air, giving a richer mix.
so adjust to give the max vacuum reading? thanks