For a car the size of a Cuda' to get around 2200#, you will have to address every inch of the car......

Round tube 4130, with minimum bars for the required cert, aluminum block, mini-rad, lithium battery, carbon shaft, carbon body panels, 4130 rear, or Mark Williams modular, everything in the rear lightened (axles, spool, ring), the lightest wheel/tire combo for its size, lightest brakes, etc., etc., etc.

You can't leave anything out and you won't believe how fast the cash register rings when trying to get REALLY light.