The length of a 1967 El Camino is approx 194 inches The width is approx 72 inches
yes it will, they are the same frames.
depending on the engine anywhere from 10 to 18 MPG.
yes it has a frame.
No
wiring diagram ignition switch el camino 71
That all depends on the engine in it but you can figure 15 to 19 MPG.
No
Depends on the engine and transmission
My 1972 SS with a 350 gets about 16/17 mpg
About 10 MPG. if your lucky.
You probably need to be a bit more specific. I've got a 1972 El Camino with a 350 engine in it. I get about 17 mpg now that I just put new spark plugs and wires in it.