Speedmaster spark plug holes improvement??

Hey, at least you got rid of a bunch of detonation causing hot edges.
That said, I'd be a little pissed off about my plugs being shrouded that deep.
But then again, if you end up loosing a race to Jason you have an excuse.:D
Get those 3: 55 gears in there and you can be in the race to! Is it still hard! LOL..
Wait a minute I don't want to know!...