The strip kit or calibration kit can be handy, but the great majority of it goes unused.

Decide where you want to go using the Edelbrock tuning charts to decide and order those specific jets & rods along with a pack of metering springs.

Summit usually has what you need in stock and delivery to my Arizona house took two days.

Keep your eyes open at the swap meets as well.
I got a kit for $10. that was only missing a few pieces.