360 Advice Needed - Autocross / Street Engine Build

Close, it's actually Vancouver, BC, Canada. And our gas here is pretty poor. Most is 10% ethanol, to get to 91. I can get "94" at some stations, that is about equal to the 91 in Washington state. Our GTI is running 16psi, and likes the 94 or else pulls 3-4° timing. That's a high compression direct injection motor, so a bit more complex.

As far as the quench goes, my machine shop held that to a pretty tight tolerance.
Haven't assembled the bottom end yet though, so will measure carefully the installed piston height.
I figured starting at that number leaves thicker head gaskets as an option during assembly, like the Felpro SD509.

What would be the advantage of a solid lifters in this case vs the hydraulic?

There's very few older cars out at the track here, most are drag racing. It's been hard to get info locally on setups, so I appreciate the help.
At what point is there just going to be too much torque on corner exits to make use of with a 245-255 tire?