Originally Posted by 2010 SS RS
Wow I love the numbers you had and cant wait to see what you do with 4.10's Question though..why an underdrive pully with a SC. doesnt that defeat the purpose of smaller pully on the sc? How many passes so far on stock bottom end?
It's an 10% overdrive pulley, not an underdrive pulley. On the rebuilt stock bottom end 12 or so mid to low 10 second passes. I just got the car back a wk ago.