Today was supposed to be the day, but Arthur wanted it over the weekend to tweek the driveability... Before I dropped it off, I was making 477/534 with 16.5# of boost... By just putting in the Stage II heads and Stage II cams, I lost 5# of boost. This seems to be what the Lightnings lose with the infinitely more efficient airflow... So with the same pulley set up, i was seeing 11.5#. So we changed from a 5# lower to an 8# lower to get me to 14.5#. Weather during tuning was atrocious in SC (90 degrees/70% humidity) so the numbers are probably lower than they will be on a cool day. I got the original 477/534 numbers on a 65 degree low humidity day and yesterdays numbers were 509/584.

I am very pleased that I gained 32 rwhp/50 rwtq considering I dropped my boost by 2# on a very hot and humid day. If I do it on a 65 degree day like the last numbers, I may be closer to 50 rwhp/70 rwtq gains. I hate the hot days with the L.

I am putting 750-1000 miles on it before I crank her up to 19# for the track...

I can't wait until tuesday...

The following was done over the last 6 weeks

.020 bore
manley pistons
manley rods
comp stage II cams
fox lake stage II heads
LFP heat exchanger
Factory Tech Total Domination torque converter
60# injectors
LFP idler pulley kit
Cometic Head gasket
ARP Head bolts
etc...

If I were to go to the 16.5# I was running before, I would get another 15/20?

Considering a 50 or 75 shot as well in the near future...

 

Ohh yeah, also added a Factory Tech Tranny cooler to help me buy some more time on my stock tranny... Hope to get a year or so out of this one....

 

He built the engine in my truck. The previous owner had all the work done. So far so good. knock knock knock on wood.

Good luck with it.