popping noise with nitrous

[93svt]

It used to go to 5900-6000, and the cobra computer is supposed to have a 6000 rpm limiter, so that's what I thought was going on, and it was pretty annoying hitting that quickly with 4.10 gears. I had an A9P and decided to try that, because I have yet to find an lx or gt with an actual limiter, but it already had an A9L in it. I went ahead and swapped it anyways, drove it, and same thing. Turns out I needed better valve springs. I have had the car on a Dynapack chassis dyno, which bolts directly to the axles so there is no slippage, and the tach is not far off. No chip, no extender, just good valve springs and a bigger cam. Ran today with a 75 jet and got a 13.19 on drag radials. Still need to get used to the car and the bottle. Thanks for your replies.

[Dark_5.0]

I dont know why but my car doesnt have a limiter.

[~The Jester~]

Hell guys, my shift light is set at 8,600 and it LIKES it! I'll bet ya a donut that Mr. Chambers is shifting even higher than that. Not a big deal if all is right.

Now on to the point. Popping on Nitrous is NEVER a good thing. Even if the car is "behaving" well. Like mentioned before, I'd knock some timing out of her, and maybe even throw in a set of cooler plugs to boot. Autolite 24's should be on the mark. Unless your heads dictate the "extended reach" plugs, then I'm not sure what number you'll need. We can figure it out though.