Thanks for everybody's replies. So here is an up to date spec sheet of my car.....sort of haha. Could anybody give me an estimate of what kind of power I should/could be pulling once its all up and running again? ....And im going to ask another beginners question, if you were in my shoes......out of the very little cash I have left after the ZF transmission rebuild: would I be better to buy a surge tank to run with my walbro 300lt-ph intank, or a plazmaman Inlet Plenum.... I know people have already answered, but its an ongoing question and im getting 50/50 opinion's haha, im chasing 500rwhp, and I think im nearly there, I just need some advice, im going to do the valve springs later when I can afford them. Is the benefit over the surge tank worth it, over the inlet plenum? Engine & Transmission: - Nizpro 1000HP Intercooler - 3.5 Inch Alloy Cold Side Into Throttlebody - 2.5 Inch Alloy Hot side - Walbro 300lt-ph Intank Fuel Pump - MSCN Turbo Oil Feed Kit With Inline Filter - Turbosmart 12psi billet aluminium Internal Actuator (waiting for install) - Seimens Deka 80lb Injectors (waiting for install) - 4 Inch Plazmaman Intake & Airbox kit with K&N Filter - Battery Relocated to Rear/Boot - Built ZF 6 speed transmision by XFT with Nizpro Input shaft (waiting for install) Exhaust system: - 4 Inch Turbo dump pipe - 5 Inch Catalytic converter - 2.5 Inch Twin Cat Back to twin 2.5" muffler tips Thanks again people, this forum is pricesless.