need performance help, sled pull numbers went down
 

ok so I have 2002 cummins auto

- sb66
- quad 4k
- fass 150
- hailsey 8x.014 (too big I know)
- 110# springs
- arp studs
- Hamilton rods
- fluid dampner
- triple disc converter, billet input and output
- some other little things

so last year I pulled twice and pulled 296ft 6inches both time

this year I turned the boost up form 32psi to about 44psi, (im pretty sure it spikes to about 44 then falls off a bit)

also got new brand new tires and a different tune (truck was getting bucky at 2500 rpms last year turned min can fueling up from 20% to 25% seem to take care of it)

and I pulled 251 feet twice this year so far

all 4 pulls I keep getting smoked by my buddys 03 duramax lb7 with only efi live and shot tires lol

so looking for advice on modification, injecotrs most lilkey for sure and what ever else


not sure if these videos will work but

here is last years - 296ft
https://www.dropbox.com/s/puw68f7ral...2018.33.46.mp4

here is yeaterdays pull- 251 ft
https://onedrive.live.com/?cid=14196...tczH-DmgVo&v=3

yes I had weight on the front last year I also did this year at the pull before the one in the video still pulled a 251

thanks