My fuel injectors are also real noisy sometimes. I can only hear them at a lower RPM (2500 and below) but I'm not sure if they are still making noise above that because it gets real loud from the exhaust. Put the screwdriver on the injector and see what happens. I'll bet that's where the noise is coming from.
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1993 Conv. LX 5.0, FRPP 302 longblock w/Y303 aluminum heads, E303 cam. 93 cobra intake, 65mm TB, 73mm MAF, 24lb injectors, 255lph fuel pump, Aeromotive AFPR, Underdrive pullies, Motorsport ceramic coated shorty headers, Bassani X-pipe w/converters, American Thunder Cat-back, Lentech AOD, Alum. driveshaft, 3.73's. Best E.T. 13.98 @ 99.78mph w/ 2.171 60' (Fontana Dragway 10/06/01)
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