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Gs835.8Stang · 03-23-2005, 08:50 PM

I have to agree with Dark5.0. I had each of them (GT 40 and Cobra) on a 89 convertable at one point or another and there was virtually no performance difference between the two of them. The car ran a 13.10 with the Gt 40 and a 13.20 with the cobra, MPH was virtually the same at 107 GT and 104 with the cobra, both of those were best times, no slicks and I couldn't hook up at all. I walked it out of the hole, but still spun pretty badly till the top of 3rd gear, I think I had like a 2.10 60 FT time) I like the cobra best as well, the GT40 may be a couple of pounds lighter, but that's about it. Honestly, if I were you, I would look into Edelbrock's intakes for the 5.0. Their performer RPMII is a damn nice intake that performs well. (A friend of mine works for a speed shop, and I have seen various ones dyno tested), just some food for thought.

03-23-2005, 08:50 PM	#3
Gs835.8Stang Registered Member Join Date: Feb 2005 Posts: 13	Re: gt-40 vs cobra intake I have to agree with Dark5.0. I had each of them (GT 40 and Cobra) on a 89 convertable at one point or another and there was virtually no performance difference between the two of them. The car ran a 13.10 with the Gt 40 and a 13.20 with the cobra, MPH was virtually the same at 107 GT and 104 with the cobra, both of those were best times, no slicks and I couldn't hook up at all. I walked it out of the hole, but still spun pretty badly till the top of 3rd gear, I think I had like a 2.10 60 FT time) I like the cobra best as well, the GT40 may be a couple of pounds lighter, but that's about it. Honestly, if I were you, I would look into Edelbrock's intakes for the 5.0. Their performer RPMII is a damn nice intake that performs well. (A friend of mine works for a speed shop, and I have seen various ones dyno tested), just some food for thought.