help! irratic idle and difficult starting on series one rs cab,collins 195 chip,14psi,running 285t2,-31,brand new t3,vulcan head,pace cooler,filter and mongoose'no dump valve and cant find an air leak,new plugs fitted,have swapped like 4 like sensors'ecus and fuel metering unit,can anyone tell me what the base idle mixture should b set at for this spec?idle can b anywhere from 750 to 1500rpm,any advice greatly appreciated :wall