Engine Performance problem
1968 Ford Mustang V8 Two Wheel Drive Automatic 105k miles
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Hi, my name is Josh , i am 17 and need some help with my car. It's actually a 68 fairlane 500, but it has the same engine as a mustang. My question is why is my engine backfiring inconsistantly? It idles fine, but when i goin gear to about 2k RPMs sometimes she'll pop,and backfire out either the carb, exhaust or both. or when i gunn it it will pop, and when i'm going down the highway it will pop decellerating.Sometimes even sounding like a missing issue at the higher RPMs. This has a '68 302 bored .40 over, HO cam (firing order 351 w), msd blaster coil, points and condencer(gap at 020) an edlbrock 289 intake man. with 2" spacer, and a holley 4160 600cfm with vacum secondaries. I also have long tube headers as well. I really appreciate your time reading this and hope that you can certainly help me out. Thanks again, --Josh
1968 Ford Mustang V8 Two Wheel Drive Automatic 105k miles
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Hi, my name is Josh , i am 17 and need some help with my car. It's actually a 68 fairlane 500, but it has the same engine as a mustang. My question is why is my engine backfiring inconsistantly? It idles fine, but when i goin gear to about 2k RPMs sometimes she'll pop,and backfire out either the carb, exhaust or both. or when i gunn it it will pop, and when i'm going down the highway it will pop decellerating.Sometimes even sounding like a missing issue at the higher RPMs. This has a '68 302 bored .40 over, HO cam (firing order 351 w), msd blaster coil, points and condencer(gap at 020) an edlbrock 289 intake man. with 2" spacer, and a holley 4160 600cfm with vacum secondaries. I also have long tube headers as well. I really appreciate your time reading this and hope that you can certainly help me out. Thanks again, --Josh
Aug 29, 2008 at 9:18 PM
