6th gear would be a problem for standing mile event. You'd either need to change 6th gear, or change the final drive to be much taller (numerically smaller) to allow the car to hit it's max speed in 5th gear instead of 6th. Without a change like this, the standing mile trap speed wouldn't be a whole lot more than what he's got here. I'll see if I can find his dyno chart and simulate it and give you an exact answer.
Hes got a new version of the McLeod clutch if I am not mistaken. With that kind of power the stock clutch would be applesauce.
Stock non R Michelin tires. 305s and 295s
Yes. The only items we changed in the engine were the oil pump gears and the timing chain gear. This is something we do to all 5.0/5.2s when going forced induction rather it be supercharged or turbocharged. I know some will argue that the engine is no longer "stock" with these changes but I that is really splitting hairs at that point. I think that once you are changing anything from the rotating assembly ie pistons, rods and crankshaft then it is considered a built engine....thats just my opinion though.
That depression is due to it being two layers of metal. It was like that prior to making the runs. When installing them we were aware of this so we left the bolts as loose as we could, but the hood is really thin aluminum so it deforms really easily. We are currently making some little spacers to fill in the gap so we can tighten them down without it pulling on the top layer like it is in the pictures. We just ran out of time as they were being installed Friday night just prior to loading it in the trailer to head to the event. I will post some pictures of it after we get the spacers made and installed.