Dual quad question

Thank you for the replies guys, i ended up picking up a pair of 1850-2 600cfm holleys, and I'm going to swap out the secondary metering plates for metering blocks so i can adjust the jets. Would it be worth it to swap the secondary diaphragm spring covers for quick change ones to speed the process of spring swaps if needed? And what should be a baseline to start with regarding jets, needle and seats, stuff like that? I really appreciate the help!