No Start!!!!!

1965 Buick Skylark Gs 401


My Car Wont Start

When I Turn The Key Everything Turns. It Backfires A Little Bit But It Wont Start. What Could Be Going On?? I Have New Plugs And Wires And A New Battery.

Ignition timing could be way off......plug wires crossed.........cam timing chain could have become so worn its jumped a tooth (very difficult to diagnose)

Carburetor could be all gummed up......