Small update: the engine is finally at the machine shop, will probably be done in 2-3 months, depending on the parts availability. In the meantime, I've decided to also replace the clutch, since the old one is pretty much the rivets on the clutch material. I've decided to step up from ACT Sport Clutch to ACT Heavy Duty clutch kit. Both kits feature the same clutch disk (street material), so it will be nice and smooth engagement, but Heavy Duty kit has a stronger pressure plate, so the clamping force will increase and torque capacity will go up from 430 pound foot of torque to 485, since my motor already makes 430 as it sits. Stiffer springs on the pressure plate will mean stiffer pedal, but I'm not too worried about that, as will be revealed later.