well guys i had my car tuned first time with 4l60e and a junk 2800 converter, it made around 400rw hp on dyno, the converter took a crap or something so i went ahead and had a reptuable shop do a rossler th350 swap with a 4k stall (not sure what stall it is) but i know they had the converter done for spray bc im going to be spraying the car... we dynod it after re tuning on the computer, and changing some odd n end parts and it put down around 305 on motor and we sprayed a 150 through it and it only put down 316.4 , just kind of wondering whats going on lol!!!! car feels good, and def can tell its being sprayed when you spray it... just dont know whatsup with the 10hp gain on a 150 shot??? any input would be great! also its a 383lt....

 

yep same dyno "dynojet"

 

Go to the track and compare that

 

blowing through the converter? tires spin on the shot?