I just got back from a little visit to Nelson Performance. We put in some PRC Stage 2.5 Heads, a Comp 220 Cam, push rods, lifters, and some injectors. We also did some street tuning and dyno tunig as well. Here is the dyno chart:



The rpm axis is off by about 800 rpms. No problem, just add 800 to what you see. Allen has his SuperFlow loaded up so that it measures 90% of a Dynojet.

Initial numbers were:
302.4 HP @ 6058 rpm
323.2 TQ @ 5308 rpm


Final numbers were::
362.4 HP @ 6271 rpm
374.8 TQ @ 5480 rpm

There is no loss in low end power that I can feel with this setup. Truck now pulls a lot better above 80 mph. A punch from 75 snaps your head back if you aren't paying attention.

Props to Allen, Jonathan and all the folks at Nelson Performance. I can't wait to get to the track.

 

Awesome numbers

 

bad *** numbers, get some track times!

 

damn nice numbers wish i lived closer to allen so he could work on mine

 

Right on.
With that conveter you're gonna be haulin azz!

 

thats sweet