Here is My situation. I have a 2004 Cummins with the Banks PowerPack in it. I pull a 12,000 lbs boat thru the mountains of PA. I have very little runway to get over these things so i was wondering what turbo would be best for me. I need quick spool up and a lot of turbo whistle. Another question, Can i run a boost fooler with the six gun with speedloader? any help at all would be appreciative? thanks