From NR eh? I wouldn't recommend it. Not that it's bad or poor quality (actually, they're great, I have a similar setup), but your motor is a stock one, correct?
I put mine on a near-stocker... UNI Air Filter, Governor Removed, and Candy Cane single stage header... smoked like hell, dripped gasoline from the carburetor, and idled very high. You'll need more modifications till you can use that setup. For starters, remove the governor and don't rev over 5000. You'll need stiffer springs at 5300, (valve float), and over 5,700, I'd highly recommend an Aluminum Flywheel ($99) and a ARC Billet Rod ($50)