My SC300 is a 93 auto. I've been noticing a hesitation in power while lightly driving. like, the power drops out completely, rpms falls below 1k for a slight second, then picks back up. the car never shuts off and it only seems to happen under 10% throttle. Under medium load it doesnt happen, BUT with wide open throttle, the motor stops revving at 5k to 5.5k rpms. not too sure what it can be. any one with any input will be greatly appreciated. I have my NA-T setup going on and want to sort this issue out first. Thanks!