I remember a buddy in high school had a 70 GTX with the electric hood scoop. I'm thinking it had a big block, but not sure now (30 years ago). It wasn't all that fast, but it was one of the few street cars around that could lift the front wheels off the ground, and that was much cooler!
Another buddy had a purple 70 Challenger R/T with a 440 6-pack. This guy could have easily raced professionally with so much natural talent, so we didn't mind him running at 140-150 MPH on the freeway. He usually saved that little stunt for the doodz who tried to race him in their Trans Am 6.6's (which he dumped at a rapid rate once he got up to around 90-100 MPH).
Not sure how we survived those days...