I went with the GT-7. I think the roller tip on my 1.8 cranes is better than the stock rocker's flat tip. I'll end up with a little bit more lift than the GT2-3, we will see how it goes. I am going to have one of those big parts piles pretty soon.

 

Make sure you report your results, I'm interested for one in how it works out for you.

 

Will do. Unfortunatly my 2500HD will not serve as a direct comparison against 1500s, but for people who have done the LQ4, 4L80, 14 bolt swap into a really heavy ECSB it will. LOL. I want to try and get the truck set up properly before I pulley down, but when I do what size pulley could I use without having TOO much belt slip?

 

The GT-7 was one of my choices before I went with the 212/218 Cam. Definitely seems to have lost some boost with the 212/218. Would be very interested in how the GT-7 works on a 408 as I am planning my next build.