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Okay, so saturday while driving, apparently the bendix on the starter stayed engaged and stopped the motor. It broke the starter to hell. Put a new starter in, car cranks over but will backfire like it's off time. Every now and then it will fire off and run for a second at like 150 RPM. Data shows RPM to be at 118,000 while engine off and not being cranked. this is what I've done so far, Changed CPS, checked timing chain and timing marks which are fine. Any suggestions? Shoebox? Anyone else ever have this problem?
 

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is it backfiring out the exhaust or the intake? are you using starter fluid? also what year and mods?
 
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