602 backfire

[biggdawg36]

602 backfires on deceleration everytime small flame out of pipes what could this be

[brad hibbard]

most common is header leak

check gaskets and then inspect entire header for cracks

[rubbinsracin]

I think brad is right. Could also be to rich?

[bluemod]

had this problem last week and it was msd box not getting enough juice. And was backfirin bad.

[biggdawg36]

cracked header was the culprit thanks for the info