what plugs do people run in theres running about 210bhp in mine,are ford ones upto the job? Been havin a few running probs my local tuner thinks plugs are at fault not changed them yet though spec is t28,front mount,beige injectors,ported polished head piper cam.stg 2 chip exhaust,uprated fuel pump runnin about 16psi boost,any advice on plugs much appreciated