Holley 600 secondary adjustment screw

iw378 said

I can read and comprehend just fine Sir and I know what S Q U A R E means,(4 equal length sides perpendicular to each other). In my second picture it is square. If one person says to just get it touching then another quarter turn, and another person says to set it square why is there 3 full turns between the 2 different methods ?
Your insight on this please.

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You have the SAME internet we all do. HOLLEY says to set the slots so they are square. PERIOD.

That's STRAIGHT from the company that MADE your carburetor.

Keep in mind, that is a base line. Depending on your camshaft size, it might be necessary to make changes. It is something not written in stone, but making the slots square is the starting point and works for most street applications. We're not here to give you some BS advice.