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Message: <blockquote data-quote="ryclef331" data-source="post: 452158" data-attributes="member: 8067"><p>You will NOT need another tune for nitrous...I run a way more agressive 331, BIGG Cam, AFR 185, Trickflow trackheat, and a 255 intank pump. I tuned it on motor on the dyno...then sprayed it with a 100 shot pulling 6 degrees of timing on the same heat range plug that I run on motor on pump gas. 10.88 @ 125 mph. WET KIT all the way. I run the NX Plate Kit on my setup. ONE THING...I have a wideband in the car and I found that using NX's jetting, the car went a little lean so we stepped up the fuel jet by two. Yes, I guess technically this is "tuning" but you don't have to go to the dyno and get ANOTHER program burnt for it. NO you don't really need a wideband. Set it up. Go out...make a quick pull through 3rd gear (if you get traction) and maybe 4th. ASAP, shut it down, pull over and check a couple of plugs. THey may look like a good clean tan burn but what you're looking for is "peppering." Lil black flecks in the white porceline of the plug and look at the electrode for signs of it burning away. If you see neither, you're good to go. If you DO see either, try going up in fuel jet sizes...keep in my though. Most kits only come with each individual power level. Not all cars are equal. Not all cars run the SAME fuel pressures. Not all intake distribute the same. SO its a good idea to buy a kit and a few extra biger jets for the fuel side of the power level you wish to run!</p></blockquote><p></p>