It could be a number of things, in addition to those already mentioned. In regard to the carburator, it would more likely be the power valve in lieu of the accelerator pump. It could be a burned valve. (do a compression test, and a leak-down test on each cylinder to determine the condition of the valve train) It could be a collapsed lifter, or a broken valve spring as well. Also, depending on the care of the engine as well as the milage, it could also be a flat cam lobe. Is it back firing through the carburator, or through the exhaust?
make sure the ignition timing it correct, the accelerator pump in the carburetor could be bad
possibly a loose connection to a sparkplug that is causing misfiring
Before I can answer your question I need to know if the engine backfires during any other operations, such as putting the car in drive?
Incorrect Timing Can Cause Backfire.
Have vehicle scanned to determine the problem and have codes cleared
check the battery and connections/cables
The 2013 Chevrolet Corvette has a V8 engine.
The 2009 Chevrolet Corvette has a V8 engine.
The 2003 Chevrolet Corvette has a V8 engine.
The 2012 Chevrolet Corvette has a V8 engine.
The 2008 Chevrolet Corvette has a V8 engine.
The 2007 Chevrolet Corvette has a V8 engine.
The 2011 Chevrolet Corvette has a V8 engine.
The 2002 Chevrolet Corvette has a V8 engine.