[csx4910]

As the not so lucky owner of serial number 1 of the 511 Roush I can say the first 2 years were Hell. That being said, after getting sorted nad many trips back and forth I can say if I had to do over I would seriously look at a quality builder building a similar size motor for half the cost.

On the other side, now that the motor has some miles (about 3000)and properly sorted, it runs like a beast and I have no problems for quite a while since the initial couple of years. Do I love my motor - Yes, would I buy another Roush product again that was brand new just released - NO WAY. That being said the 588 has been out for a while I would think they worked some bugs out but you could build a carb'd 588 from another builder at half the price