Considering ball bearing turbos. I wanna go for big power with minimal lag. thinking z1 675 bb turbos. Thinking Ill need better flowing manifolds? Camshafts? (don't know what lift)with solid lifts etc. Thinking Ill need to upgrade injectors to what size? Dual flow intake? and obviously ecu upgrade to match parts. Best/cheapest combo info would be great. I currently have a stock lower end engine with front mount intercooler,555 injectors,dual filters with single intake(no room with fmi),extrude honed and port matched intakes, dual friction centerforce clutch with aluminum flywheel. Gutted precats with stillen downpipes and exhaust. I'm sure I'm missing some things that could be relevant. Anyways I run about 16.5 boost now and flywheel horse is approx. 520. Car just doesn't do it for me anymore had it 18 years. It just doesn't seem that fast to me anymore though I only drive it like 300 miles a year(yes 300). So what would be best turbo/combo/etc?