yeah im not looking to turbo it yet just looking into tuning the 24v when i do fit it in i need to do my homework on the turbo side my friend said that a 24v will be a totally different car to my twincam and ill need to learn how it takes corners and braking but he also said its probs better to 24v than yb because at the end of the day its still just a normal sierra so wont hold any money but ill defo do it and start up a thread about it and hopefully get some more advise of you lot as its been very good what u have all said i think the thing i need to do is just stay on 1 option and go 4 it otherwise ill just never start on it as you said there has been loads of people who have done this conversion so it shouldn't be that hard to do