couldn't find any opinions/reviews in the past forums. anyone have any experience with these guys? i'm looking at their factory spec aluminum 2 row with fan and shroud setup. let me know what you think. specs say the 14" spal fan is rated to 1650 cfm. is this enough for a n/a 347 with 475 hp? also, how much noise do spal fans make? i've heard plenty of electric fans that are way to loud for my liking. here's the link... let me know what you guys think: http://cgi.ebay.com/ebaymotors/64-6...ryZ33602QQrdZ1QQcmdZViewItem#ebayphotohosting