Hey guys.
This is for my 1980 351M Bronco, but I know you boys know what you're talking about, so....
My Q is that one day my Bronc ran fine, the next day, a POS and would just constantly stall with lots of black smoke WOT.
I went straight to the carb (4160) and checked the floats and the secondaries were just gushing gas. My question is how? What happened that they would do this? The lock screw was tight and the day before it ran perfectly.
So I leaned it out big time - about a full turn on the nut - and it runs good, but still blows a little black WOT.
Any thoughts on this... I swear, the float screws were tight. Why would it just flood out like this???
This truck gets 10mpg on a good day. I fear I am down to 7 or 8 now until I can get the carb set right...
Thanks all!
Brad