I had 3 /6's, I wasn't impressed by the acceleration of any of them, actually all of them were dogs. I didn't have a lot of money to invest in them and I pretty much thought that it would be a waste of time and money. I had a 1972 gremlin x with a 258, now there's a car that ran great for being stock. Those/6's didn't have a chance against it not from a dead stop or a 30 mph punch.