I have a stock 400/400 with a 3.54 axle, and I'm happy with it. I got a hole shot on some dork in an Infinity with fauncy wheels and a 4 inch fart can on it. Or maybe two fart cans. He was winding it up at the light, so I couldn't resist. OK, I only beat him across the intersection, because I was doing 40 MPH by then, and I'm no longer the rebellious law breaker that I used to be.