It seems to be the exact problem that a few members experienced in this thread: https://www.crossfireforum.org/forum...-possibly.html Did any of you guys diagnose/resolve this issue? I can say 100% it's not the engine (bad IC pump = no supercharger = no noise). It might not be supercharger related because during lighter loads there is no noise at all (Initially I thought supercharger engages only during heavier loads but the above video seems to tell a different story). The sound is in fact RPM dependent as in that thread, driver's side. I know what noisy valves sound like and it's definitely not it. Please help!

It would make sense if there was a leak at the header collector flange (sound is coming right from that area and I can smell fuel during moderate/heavy acceleration. The noise is directly correlated to fuel smell. The longer I accelerate with the noise present, the more fuel I smell), as a quick test I could use real steel which is a bit weaker than JB weld to temporarily seal that area to see if that's the problem - that stuff will burn off completely in a few days but it smells pretty bad during the process .

I guess I wasn't thinking about the collector flanges but it would make sense as the exhaust flow pushes them slightly apart and you get fuel smell and the ticking noise from them making contact which would be rpm dependent. How would an exhaust shop go about fixing this? Would they need a new doughnut looking gasket and is it something that they would have?