Holley 1920 jet size

Just got done doing new valve stem seals and setting the valve lash when I decided to play with the jetting a bit. I noticed that the motor just didn't have that spunk that it should have off idle and when you would mat the throttle. I went through the carb when I first got the car, and found the metering block all plugged up so I completely stripped it down and removed the plugs and was able to get it completely spotless. Anyways, it was equipped with a 58 jet and the only size I had on hand was a 64. Wow! With 8 degrees initial and the 64 jet, it now will spin the tires on dry pavement from a stop and has very good throttle response. Plugs are light tan which is nice. Anyone else use such a large jet in a stock 225?