OK, I have a 416 stroker with an E40 PCM, in a 05 GTO. I have AFR225 heads and a pretty big cam with over 600 lift, and a FAST 92 with Kooks long tubes 1 7/8. I have 2 tuning issues, at light cruising in any gear I have bucking, when I am cruising a 50 or 60 in 5th or 6th gear light on the throttle it feels like a hickup. and its constant, never goes away.
The other problem is hot start, cold starts are perfect, starts right up. When hot starting it will start and then die. I have to give it throttle for a bit before it will idle. Any help would be great as this is my first post! Thanks!

Heres my current tune and log files. I am new and trying to learn. so if I am way off on something let me know.

12-11 current.tun

start try.efi

Cold start and warm up.efi