Its making 450 on motor....can I spray a 150 wet and be safe motor wise as long as the tune is perfect?

 

With the proper fuel system upgrades, yes you can.

 

my ls2 made about 800 or so on 2 stages. stock block. good rods and pistions.
id say your good to spray 150 as long as the tune is on target.
my stock ls1 with twin turbos made 600 for 30,000 miles i took it apart and it looked MINT!!

 

As long as you have adaqute fueling to support the Motor and Nitrous you should be fine. If you are running off the stock pump those are typically good for around 450-480rwhp from what we have seen. With you having headsd and cam I'd definately get it on a dyno ot motior the AFR...we typically like to see if at aroudn 11.4-11.8.

 

I had 75 jets in it and it made 530whp. My tuner told me the fueling was perfect and it showed no signs of being lean, other than when the nitrous initially hit. I do have a wideband. I ordered jets for a 125 shot so I think Ill just stick with that. Are these LS2's good to a certain hp?

 

i made 700 rwhp on spray with my 346. stock crank stock block. the ls2 is a better motor 530 if tuned right is no problem. 600 should be no problem if its tuned right with the right suporting parts, ie. fuel pump, injectors, fuel octain etc etc etc