Ok i dont know what else it could be ....

has new plugs,new wires,new fuel pump assembly,found that broken tensioner ,replaced with ls2 tensioner and new chain...tune is dead on....and this thing still backfires from a dig at wot...even at 30 40 roll sometimes....i give up...maybe i mest up something while it was running super lean on the bad fuel pump?

next thing i will try is a 3600 stall...maybe the cam doesnt like the low rpm..cause dont get me wrong it runs good other than the annoying backfire u can hear a block away haha

i may even put the l92 truck intake back on if nothing else....