What is the best way to lower the weight of the car? Do they make a fiberglass hood? What the lowest weight that can be had on these cars? Can you get them down below 3000lbs with a small block?
welcome to FBBO... If your building a real race car, I would think with all the proper lightweight pieces & Lexan window w/an aluminum headed small block, especially if you use allot of aluminum parts & fiberglass or carbon-fiber pieces also... use lightweight fuel lines, a cell, lighter wheels, tires, hood, trunk, fenders, doors, bumpers & brackets, windows changed, remove carpeting & insulation &/or undercoating, lightweight racing seat, window regulators, aluminum or molly drive shaft, alum. manifold & rad., electric water pump w/no more steel pulley, use alum. pulleys, get rid of the heavy fan & use an electric fan, headers, lighter stronger tubular upper & lower control arms & tubular K-Member, racing rear 4 link or ladder-bar & coil-over type suspension, get rid of the heavy torsion bars & go to a strut or coil over front suspension, you could also get rid of the heavy leaf springs in the rear, or run CalTracs & mono-leafs, alum. MP 742 carrier {if you have a 8-3/4 rear}, spool instead of diff., alum. adj. racing shocks, racing brakes, etc.... A cage & sub-frame connectors, will add a little, but well worth the weight...
good luck, But it ain't cheap, well worth it thou, but it can be allot cheaper than an expensive & heavy BB engine or high HP Big CI build, to move a heavy car... you can get 420+ci's out of a small block easily too...