Ok, installed the off-road needles and seats. Reset floats to 7/16 max rise and 15/16ths max drop. Now it acts like it's lean. It runs a litle choppy at idle and the minute I open the choke it immediately dies. Otherwise the throttle input seems normal - no stumbling. Are my float settings too low? Ok here's something interesting. The instruction set with the kit specifically states 7/16 and 15/16ths. Edelbrocks website states the following conflicting information: Off-Road Although the Edelbrock Performer Series carburetor was not calibrated with hill climbing and other extreme off-road operation in mind, it can be made to perform superbly by substituting Edelbrock #1465 spring loaded needle and seat for the original needle and seat. The spring loaded needle and seat act like a shock absorber, reducing the possibility of flooding during off-road operation. After installation of the new needle and seat you must reset the float level to 3/8" and drop the float drop to 1-1/4" as outlined in "FLOAT ADJUSTMENT".