Grinch

I am running 16.5 degrees of timing.

Interesting points. I like it. I usually run my truck 1200 to 2400 rpms. What would you recommend for me. Remember that I have a 1994 12 valve.

Wouldn't a larger exhaust housing make it spool slower?

Good evening, I am a new member and this is my first post, so bare with me please. I am running a 1994 2500 Cummins 4x4 with the NV 4500. It has a 3000 rpm governor spring, slightly larger delivery valves and 5x.013 injectors. I pull a heavy RV trailer and am looking for a low rpm, high boost turbo that will keep some control of my EGT'S. I had a 58/67/6 for a week that I absolutely loved, but it blew the front bearing out of it. Any suggestions of a comparable turbo out there would be VERY appreciated. Thank you in advance!