Heatsoak is a problem, but its expected with a large turbo on a TMIC. But, the car at speed keeps the heatsoak down majority. Car dyno'd 325 on a hub dyno. Car really wasn't able to get finished as I had fouled plugs and a fuel pump fail while on the dyno).
SBW, your right
My 12.1 @ a very low mph dictates that I am not making as much power/driving a lightweight car, but I make up for it with my inability to drive fast