Recently my 1970 Thunderbird started choking when I accelerate rapidly from a stop (i.e., when I try to burn some rubber from the stop sign). When I accelerator moderately, it works fine, or after I get up to 15 mph, I can stomp on the gas without a problem. It is only when I hit it from a full stop. Any suggestions as to what to test? I have electronic ignition, and a 460 engine. Fuel filter? Spark plugs? Dirty carb? Other? Thanks!