Monte offered a good tip. A 3 circuit is a tuning tool, to get the car on the converter. For part throttle, transitory use, not so good. I struggled with one leaving at 3,000. The 2 circuit 1050 I use now, is clean as can be. AND, not to sound like a broken record, those 8896 metering blocks, with the idle feed tube in them, suck. Has this been changed yet?
