904 or 727

superdart said
Well, to take 600hp neither one will be cheap.

The 904 will cost extra money to gain the required durability, where it's a little more "built in" in the 727. A few here say there is only a 15-20 hp difference between them at the tires.

So I guess the question is: How much is 20hp worth to you? A few of the more experieinced guys can give you a better idea.

Ya i just have to think if its worth the extra money to built a 904. But it needs to be realiable bvecause i put alot of miles on the car in the summer. I drive it all over. i dont want to have to freshin it up twice a year.