Quote from: Brads70 on Today at 06:09:47 AMTiming or exhaust leak when it gets up to temp?
Quote from: torredcuda on Today at 05:41:06 AMBackfiring is usually caused by timing, ignition or fuel issue (lean), could also be getting too hot. Do you have an accurate, working temp gage? You need to check for fuel and spark/ignition voltage when it is acting up to narrow it down. When were rubber fuel hoses replaced last as they can collapse inside? Coils can get weak when hot.
Quote from: Cuda_mark on May 13, 2024, 02:22:33 AMAre they the same in 71 as the 70? I have a set for a 70.