Ok was chasing a High BLM (150) got it down to 128 by installing EGR blockoff plate and replacing vacuum hoses, installing a TT chip and LS1 MAF w/ Translator...but now when the car starts cold the IAC is 175 then once it warms up it quickly drops to 0...any ideas? The car seems to be idling decently, RPM's 850-900 once warm..around 750RPM when cold -- should I mess with it? TPS is .45