I don't really know for sure. I know it might need a turbo from what the owner said. I'm thinking a heavy boat like that would benefit from a newer style turbo 82/83 if it can be put on. My friend and I have discussed it some on what we are going to do first but can't decide. I'm thinking the car would benefit from a 3.08 gear adn a 2200 stall in the 350 trans, or we might just do a OD trans in it down the road. Then there's the upgrade of the heads, manifolds, and intake

THe owner said the car runs, but who knows how long it WOULD run beings I couldn't get the motor to turn
Just so we don't waste money anywhere, we are going to do mods that are inexpensive and will be able to stick with the car after more seriously modded-like gears, trans, suspension, ALKY, cai, exhaust. It's a heavy car, so it's going to require a quick spool and a stall for sure. There's not many lesabre people on here. I've searched and found a few people but they aren't regulars. If we can get the car to handle well and get it into the 14.0 area for a reasonable amount of cash, I myself would be thrilled. It is in good condition for it's age. His biggest concern about it is it's size and if it would even get up and move. I don't think they weigh much more than a fully equipped regal if I remember right.