I am about to be running a 125 and/ or 150 shot and was woundering about how much timing I would need to pull for the 150 shot. thanks its on a 99 with 350 vortec in it wiht a nx wet kit thanks

 

most people pull a degree for every 100hp they intend on spraying. i am running 28 degrees and spray a 150 from time to time.

 

thanks for the reply. I am trying to get a tune wrote up for this coming weekend. thanks again

 

if you have a stock tune then stock it is pushing only about 18degrees of WOT timing.You should be fine
just make sure you gedt some 93 octane in it
always run premium with nitrous

 

Well on mine right now at 15 kpa it is as 28* when the nitrous is on that soind like to much? thats lower than the tune I have for a 100 shot.

 

15KPA and what RPM?You will not see 15KPA at WOT and that of course is ONLY when the nitrous is to be activated.What software are you tuning with?
Most of time you will only see 15KPA is on deceleration,or coasting depending on your setup.
My truck with the stock cam would idle at about 35KPA but now with the cam I have it idles at about 45-50KPA @ 650RPM or alittle less.