I seem to be getting a backfire when racing in 3rd gear, load too. This is the 2nd time it done this now. Iam running 790's on my o2's in 3rd gear, this is where i want to be right. Iam also running 20-21 psi on 93 pump gas
But iam getting no knock , maybe the knock sensor is not picking it up.
If i tap on the knock sensor or by it pretty hard it should pull up knock right. If not it a bad sensor i guess.
I did beat a old fast back mustang when it back fired by 3 cars easy.
hope i have a head gasket left to do it again

If i tap on the knock sensor or by it pretty hard it should pull up knock right. If not it a bad sensor i guess.
I did beat a old fast back mustang when it back fired by 3 cars easy.

