I have a 1989 2wd sapphire cosworth and I still have a pretty bad flat spot when the engine is cold,it pretty well clears up after about 10 minutes of blipping the throttle.I`ve changed the injectors (new),map sensor,ignition module,temp sensor,air temp sensor,spark plugs,dizzy cap and rotor,fuel pump and filter,crank sensor,coil,adjusted the phase sensor gap,It`s got good fuel pressure.It`s running a brand new bayjoo stage 2 chip,rs 500 intercooler,md308 turbo.PLEASE HELP.Getting desperate (supposed to be competing in a hill climb this weekend.)