Originally Posted by cdelong

Leave the bottom end needle alone. Just open the top end needle... you won't be on idle except for when topping off the tank.

This method works really well on Nova based engines. I just try to keep the temps up- as stated above.

When have run through the 8th tank start taking a look at the bottom needle. There's no use mucking with the bottom needle till you get the top end close to where you'll be running at race tune.