[KensRedZed]

From Google:

"The term "pony car" to describe members of its ranks was coined by Car Life magazine editor Dennis Shattuck. The characteristics of a pony car were generally defined as: A sporty compact car for the masses, that could carry four people. Long hood, short deck profile, and "open mouth" styling."

Pony cars with a lot of power were considered muscle cars.

I used to be an automotive machinist back in the early 80's rebuilding V8 cars from the 60's and 70's. Mostly for drag-racing.

Now you got me started.

Let's put the 351 under the microscope for a moment. There were 3 different types. The 351 Windsor, a 351 Cleveland, and a 351M. All three engines were completely different. The Windsor and Cleveland were as if from different planets. Nothing interchanged at all.

The 1969 351 Windsor was a small-block engine. Small in size. It was actually based on the 302, but modified to accept the longer stroke. Somewhat of a grocery getter.

The 1970 351 Cleveland was consider a big block with "Boss" status. Gap and Roush were famous drag racers that broke pro-stock records. The cylinder heads were incredible. You could easily stick your hand into the intake or exhaust ports. Baaad gas mileage would be an understatement. 6-miles to the gallon was normal.

The 351M was a polution controlled turd of hurdles... best used as a boat anchor.