Re: 4BBL or 2BBL?
It's the type of carburetor, 2bbl is gas saving for a V-8, the 4bbl will give you more hp but less fuel saving. Car companies used carburetor's before fuel injection became the norm.
My first car was a 67 Mustang Coupe, 2nd one was a 67 Cougar XR-7, 3rd one was a 66 Mustang Coupe. Why did I get rid of these cars for ? I know why, because I'm stupid, stupid, stupid.
My next Ford.....