[vector1]

Also made an interesting observation I would like to add. With the old metering block the cruise afr was anywhere from 13.5-14.5/15, depending on the IAB number, couldn't get it any leaner without adjusting the IFR, and it was fixed. Also the IFR was at the lower portion of the metering block and resulted in a smoother afr reading than if the IFR is located at the top. At this richer cruise setting, the car would accelerate real well from cruise, but the mpg was lower and I didn't want to cruise at the richer afr's. So people buy a carb, and it has been my impression most of the carbs made by the aftermarket tuners can be on the rich side, probably for safety. People get one of these carbs and think they have something really hot, what they don't realize is they are cruising at the richer afr's. So with the t slot restrictor installed you can adjust this to wherever you like. jmobservation.