Well im in the middle of doing this right now (just need a car lol)

I have a set of gsxr 750 tb's on a custom inlet manifold fuel pressure regulator with a gague built into it and adj pullys megasquirt ecu and the engine just need to sort the exhaust side of things out but i know how much its going to cost for the manifold i want and system.

So far i have spent £735

With another £200 to go a bit of wiring to do that i think i can manage my self lol and as i said looking for a car now and then ill put it all in and get it running already have a base map that i know works with the tb's so ill have it mapped properly when its all in the car.

So the expectaiton is that ill spend less than £1400 for the whole lot (no that dont include the final set up) but i supose i can do all the spanner work and wiring etc myself so if you have to pay someone to do it obviously there is going to be more cost my idea was to do it all on a limited budget and i think im there really.

As for what tb's to use the general idea seams to be that for a 2.0 you want to have a 42mm bodie the gsxr 750 ones taper from 50mm to 42mm manifold side so there ideal the guy i got mine from has made a great job of spacing the bodies and making the inlet manifold.

So it really depends on how much money you have to spend you can do it on a budget or you can spend loads its up to you.