I got mine after only a week!!! I got one for the 67's. AWESOME stuff. It's funny to see all of the engine charts. The sixes and eights of '67 had about as much power as the 4 bangers of today
They keep that "GM restoration parts" section updated too! Goodmark cancelled their lisence only a month or so ago and they are off "the list."
I saw Mar-K was on there though!