Well, I let my girlfriend drive the iroc, and as luck would have it, it's knocking.
She wasnt beating on it when it started.
It doesn't knock at idle, but it starts knocking at around 2000 RPM.

One friend said it might be loose torque converter bolts, so I tightened them with a ratchet and no luck.

Any suggestions? Any way to quiet it? It sounds like a rock is bouncing around my engine! Oh yeah how much longer till she explodes?

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1980 Camaro, '88 Police 350 engine, Headers, full exhaust, completely redone, my baby!
1988 Iroc-Z L98, MSD 6a, Accel coil, K+N's, Airfoil, Coolant Bypass, Flowmaster, Gears, Late model Bose, I like the 80 better