had my clone out yesterday, though the Scottsdale police were out as well. Motor is a bone stock 3.2l with injection, PCNA clutch (which is chattering right now and needs replacement), limited slip. Did a couple of full throttle runs and at about 3400 to 3500 until around 4000, there was noticeable drop in power. Just sort of bogged down. When it picked up it ran strong right to the red line. Could be just dirty plugs, since i had not had it out in 3 or 4 weeks. What other issues might cause this strange power loss? Slipping clutch (thinking not since it pulls everywhere else), valves (just had them adjusted), dirty fuel filter (would seem to affect the entire range). Let me know some ideas