174/177 supercharged small block, where to start?

Thank you. 6” crank pulley with a 2.5” blower pulley is 140% overdriven.

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Good GAWD. They must not move a ton of air to begin with. That seems like a boat load of overdrive.....but I'm all for it. I've never seen the point in NOT USING a blower. I've built a few blown engines and using them is where it's at. I never have understood guys that build engines and then underdrive them.