Had a 76 Lesabre, ended up dropping a junkyard motor in it when the 350 went south. Junkyard guy told me to pull the motor out of that Skylark down the hill, I could have it for 200 bucks. The Skylark wasn’t a Skylark. It was an Olds 442. With a 455 in it. Took it and dropped it in that Lesabre, got the shock of my life. That car would smoke a Mustang GT down the road, and do it again stoplight to stoplight. Could do donuts on dry pavement from a moving start. Never knew what had been done to that motor, but it made a land yacht into the fastest car I ever had.