i have a 93 siverado tbi and when i gun the gas it cuts off like it ran out of gas or flooded it .it also will shout a flame out the breather
how old are the muffler(s) and cats, they may be plugged or restricted
Usually back fire through throttle body,has to do with a timing issue.
Ignition timing is off, or firing order got messed up. Worst case is the timing chain jumped a tooth
Looking for a Used Silverado 1500 in your area?
CarGurus has 151,931 nationwide Silverado 1500 listings starting at $1,500.
Search Chevrolet Silverado 1500 Questions
Are you a UK consumer? CarGurus now has a discussion forum in the UK.
Chevrolet Silverado 1500 Experts