I can say one thing for sure, something is definately up with your setup or tune. When the problem is corrected it will put a huge grin on your face. Your current setup is falling on its face faster than a stock TBI engine with headers and not making near the torque.
These graphs were from my old 83 G20 with a GM 1-ton L05 crate engine. First dyno was mostly stock with headers, 2nd dyno had 1.6 roller rockers, Z/28 valve sprongs, intake manifold, and 454 TBI.
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