Can you lock up your disc brakes?

That's a lot of brake, and a lot of tire, but you should be able to lock them up, and you want to be able to lock them up.

You shouldn't have to "build heat" to make it happen, you won't have time to in a panic stop.

I would talk to someone who knows brake pads (like a Brembo or a Wilwood rep) and have them recommend a pad for you. It's a bit like getting the correct cam or torque converter.

You may need to play around with different master cylinder bores and/or pedal ratios to optimize your setup.