I've ran alky, but now mostly run C85. A good compromise to me.

Rupert alky carbs are the best I've seen personally, especially on blown stuff.

The beauty of an injector is it's way, way better for your motor if tuned right (obviously). ANY carb goes dead lean, and into detonation on shifts. Even the finest prostock effort carbs. There is no way around it period end of story. An injector isn't subject to fuel flow relative to air flow, like a carb, so no lean on shift condition typically exists.

Alky is more maintenance, and it does get into the oil, but mostly what gets in the oil is water from the temperature differential, and alky drawing water. You'll see when you start up from the last outing your vacuum pump will blow humidity out till it's hot, or after first pass.

A small block with a tiny carb may not pollute the oil very bad. A pair of 1050's with 8, 210 drill size jets will.