UPDATE
right the engine is going to be taking a different route now instead of me getting the head done straight away, im being patient and im currently negotiating a nice fully ported head with uprated springs from CGB Motorsport and to compliment this ill be adding a 285 cam and vernier iv also got my eyes on a front grill mounted intercooler which will then allow me to position the air filter in a much better place. now i know ill get slated for this over on the RTOC but im also toying with the idea of getting a tubular manifold and doing back to back tests and seeing just what is the diff if any would be interesting to know for sure.
All the above added to the 2.5" downpipe and GT Motorsport turbo elbow should get all the air/gass flow to its maximum which can only be a good thing ill prob stick the hybrid t25/t2 turbo i have on at the same time as well run at about 18psi