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So i bought an engine block (k20) thinking i could do a swap and well... i cant afford it. So I wanna get stage 2 cams, cam gear, and AEM management and get as much safe hp as i can. I have a cold air intake, headers, and cat back exhaust. Im about to get a down pipe and ditch that stupid cat until next emissions report in two years. So where do i start and are cams and cam gears a DIY sort of thing?

 
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Nothing that involves dissassembling the head is a simple DIY, but it's not impossible if you take your time and there are some good DIYs. Don't go with AEM, you want k-pro and with I'd consider going with a stage 3 cam.