I am running 6x0.18s with a raptor 150 1/2 lines with a quadzilla with 2000 series tunes. My charger right now is a single s366 and she doesn't light till around 2000rpm. I was wondering which turbos would best fit my needs because cruising down the road around 70 I am at 1000* and I want faster spool and lower egts...

 

You have to big of a single. If you were to get a smaller secondary and run, lets say, a 62/65/14 and a s475 as your primary. I think your egts would be in check and you would have more power.

 

I installed the BD diesel tow twins plus 100HP injectors 6 years ago on my 99 3500 5 speed I love them keeps egt's down while towing my 20 foot car hauler they have tons of power no turbo lag