ive got a forged bottom end and i put a standard head on new headgasket an all that (1.4mm) . i put the engine in put all the plugs on vacuum pipes etc and put new 550cc sard injectors in bare in mind its just on a standard ecu atm , and started her struggled as i left a earth off lol but soon as i attached it and it ran very lumpy tho and loud without an exhaust on didnt help , so i put a new manifold on with decat and stuck a td04 turbo on all the water lines and oil lines but ive not put the front mount on yet but i wouldnt think it would make the car run lumpy but i thought and put the standard injectors back in and ran alot better but as soon as you started the car it would idle at about 1400rpm but 10 seconds later it starts to rev up and down between 400-1000rpm about and struggle to stay running unless you rev it but it splutters threw the rev range , my thoughts maybe the timing but it still revs well sometimes and then not the other times , its had new plugs also and i cleaned the dissy also any ideas please and this was a novel haha:haha: