Is this a regular thing with gas? To get bad gas from the pump? Btw...it happens when in neutral rev as well. Goes all the way to 5.
Also, I don't have a WG anymore. Just a 3.33 pulley. First log
Hmm... after 6800 in 2nd and 3rd gear your maf frequency(air being shoved in) MAY be flattening but its hard to tell since you let off/shifted at 7100. Could be slipping still. What your limiter at? A 73-7400 pull would be good but DONT do it until your knock problem is fixed. Also yes its common to get bad gas, but you DONT want to WOT with that much knock. I would try a different station next time.
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