Help ID this part!
I got one off an 1981 bronco with a 351
It was removed when the truck was new and stayed in the barn for years. Took it to swap meet and it is in a pile outside the barn now
Emissions pump was common to block off and remove them. Doubt it helped anything
The bronco that my pump came off of go 8 mpg, my 85 bronco got 8-11 mpg, had 79 short bed got 9 mpg on gas 6 mpg on propane
Leave it on remove it and block it off, not a problem unless you have emissions testing in your area