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I am doing a pretty significant build, going with a 2.2L sleeved block with headwork and aftermarkets springs clips etc. I have a FP Black but I will migrate to a AMS 900 kit in the future.

I am currently running Cosworth MX1 cams and I thought about getting some more aggressive cams. I would like to make more power between 3000-8000 range. I was wondering if the GSC S2 cams or the Kelford 214B cams were a better fit. Ultimately, my goal is to make 700whp. Any input is appreciated thanks!
 

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Indeed, S2's. Or if you want kelfords the AMS TMP cams are nice and if you are feeling crazy, the Kelford C's will get you all you ever need.

But between the two you mentioned for your build the GSC s2's seem wise.
 

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From what I've personally witnessed, I've seen the better results locally from Kelford -B's vs. GSC S2's. 700whp you'll want something larger than either of these though.
Just like anything else, its all in the setup. Tough to really compare the two without doing it on the same car/setup.

The GSC specs are more aggressive, so if you want more peak power they will work better (I guess in theory, but I like mine).

Edit: I will say this, I don't think either or a bad choice at all. You can't go wrong with either. But I was making a suggestion based on the OP's setup. As for AMS recommending the kelfords, that is just their preference for the X's. Possibly a sales/marketing thing, possibly based on their research who knows.
 

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If you're running the 900x kit then either the kelford -b cams or the S2's will be great options...the kelford will keep the car a bit more mild at idle and teh s2's will probably help a bit more up top. I have an EF4 on e85 and the kelford -b's and am making over 600whp dynojet, so if you wanna keep the setup nice and mild, I highly recommend them, you should hit 700 easily.
 

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As lopey as your tuner sets them. I initially had them completely smooth and then added the lope to them later on.
You gotta let people know right! :)

My MX1's had more lope than my gsc s2's. Could be that my idle is a lot higher now though too.
 

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Being a fellow Californian I would recomend the Kelfords. The Kelfords are great if you dont want attention from the Black and whites. If you want a lumpy idle they are not so good.
 
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