Hi TSMartin-
I just found your message. Sorry it took so long. I have not had hot-start issues. I don't know why the air box would cause that. Hmmm. I live in Seattle so ambient temps are generally low. My cooling system is totally dialed in, as are the starting/charging systems. I actually have changed my cold air intake off and put the original air cleaner back on for the winter - I have cold-start issues here in the winter. What are you thinking about doing for Bonneville?
Regards, Tom