Holley 4779 specs?

Every .004 increase is equal to approx 1 jet number, .059, .063, .067 etc. Don't be surprised if you need to go up to .063 or .067 I always end up dropping primary jet size to lean primary cruise and then dial in WOT with the PVCR up front and SJ.

Good to know. Thanks! Ya know, it'd be nice if jet #'s actually reflected their respective orifice size.