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Its actually funny but here are my preferences as far as the whole ka vs. Sr debate (subjective)
cheap Ka-t>stock SR (you'll be putting out more power, and you have the option of taking it all off if need be, either to sell or pass smog, reliability wont be an issue at 5 or 6 psi)
Medium build SR>Medium KA (Mainly because proper fuel managment is cheaper for SR than for ka, Power fc is less than half the price of Aem, when it comes time to change injectors and maf. Also, at this point you'll be pushing stock ka block to the limits while the SR is still fine.
Super heavy duty crazy build KA>SR (when you get to power levels where the bottom end needs to be reinforced, its just more economical to build a ka rather than buy, swap in, then build the sr. Also, I think the ultimate potential of the KA for both Street/track is higher than the SR due to its extra displacement. On the track alone though, I think SR is = if not > than the KA.
I love both engines, they both make more sense than the other, which is awesome.
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