i built a chevy 6.0 and i want to spray 150 to it. i am wondering what spark plugs to run? will the stock ones work?: what do you guys use to adjust timing? will the diablo preditor work. thanks for your help

 

ngk tr6

 

what can i do with the stock plugs as far as how much spray b4 i put the other ones in

 

I wouldn't spray it until i swapped in some tr6s. as soon as you hit the 150 its just gonna burn the ground electrode off the stock plugs.

 

I agree. I would swap the plugs before spraying at all.

 

im running a 50ish shot (jettings a little rich) on stock plugs and its been working great. But for a 150 i would definatly go colder. I wouldnt use the handheld either, they add timing and with a 150 youll need to take some timing out.

 

I use tr55's for motor, and have sprayed a 150 shot several times without a problem. But just to be on the safe side, go with tr6's.

 

how much compression? tr6's are ok, but you would be safer with a non-projected plug vs a projected tr6. i use a br6ef on my 10.6 to 1 5.3. at 11 to 1, i would be at a 2 step colder non projected br7ef plug, all NGK. call daves n2o outlet, and ask them about what plugs to run, and make sure you read them after.

 

BR6efs or tr6 will work just fine. Dont spray it if the truck is running stock platinums!!

 

thanks everyone for your help