Whats this noise coming from?

[jacobs13]

I just swapped my fuilly built sr into my s14, im running stock turbo, ecu, injectors and maf. I Have:
HKS 87mm Sleves - Displacement increased from 1998cc to 2044cc
Tomei 87x1.5mm Head Gasket
CP 87mm 9:1 Pistons
Eagle Rods
Brian Cower Valve Springs and Titanium Retainers
Brian Crower CNC Stainless Steel Intake & Exhaust Valves - BC3202 & BC3208 +0.5mm
Greddy Easy Camshaft Set 256/264 10.5 Lift
ARP 204-4204 Head Studs ARP 202-5402 Main Studs

Its not a fresh build it has about 30k maybe on it and It makes this noise that almost like a scratching, its not very consistant but it starts to happen alot when it warm. It doesnt sound like a knock to me but I cant tell exactly where its coming from. Any help would be great, I dont want to ruin my new motor.

YouTube - sr noise 3 (http://www.youtube.com/watch?v=WO0CqplUo-Q)

[untitled23]

where exactly from the motor is it coming from?to me it kinda sounds like the cams.but not 100% sure cant tell exactly where its coming from.

[jacobs13]

Im not too sure, it almost sound like it might be the p/s pump or something. Its more of a scrapping/squeal

[nothix]

sounds exactly like PS pump, check your PS fluid (Remember to use ATF!)

[ZenkiOne]

have the same noise on my KA, as mentioned check your PS.