i have a 600 cfm holley with vac secondaries i traded an old intake for. i have it on a 455 pontiac right now and it runs pretty good but i think it could use a tune up. the main thing i'm conserned with are the float levels, how do i adjust them? i know you have to turn the thing on the top but how do you get it right?

right now the secondaries are dripping a little fuel in at idle, would that have to do with the floats?

also, i have an edelbrock 1406 on my camaro right now, how do you think the holley would compare?