looks like you are on the right track to finding a solution. a piece of advise before you buy the system. Ask what options you can buy for the system and then you will find out how complete the system really is. I bougt 3 "options" after I had installed mine having o wait 14 days for shipping to Norway every time.
(this was the period with sunnny days. I do not know what is included in your kit but the Holley kit did have several options Summit just dident inform me.