March serp belt pulleys with factory brackets

I'd think the nylock should work fine. 12.20, nice time for a street driven car! That's a bummer on the leak. My Pop has AAA. Sure is nice. Been thinking about getting it myself

BTW; are both the crank and water pump pulley smaller than the stock pulley's or just the pump? March makes a couple different series. Not sure what series you have but the power and amp series actually slow down the pump and alternator about 10% compared to factory non a/c pulley's