Carls 660 vs SLP 727 vs SLP 660?

[rmkpolaris]

Anybody running either of these kits? Im lookin to get a little more go go out of my 07 600ho. I have a buddy with the same sled as me in a 144, and he is running the carls 660 and loves it. Last year i put on an SLP pipe and hi flow intake kit, along with v force 3 reeds, so i kindof have an SLP thing going. How will the bottom end of the small block hold up to the added power of a 727 kit?

 

[css]

i had a 660 in a 06 rmk 144 and loved it that sled absolutly ripped, i have a 09 assault 800 and the 660 had way more power without a question, had i known that i wold have kept it lol