I have a 1988 rx-7 with no smog stuff left and 5 and 6 ports sleves out. In the first 5 min of drivin my car of the day it runs supper fast then after 5 min it slows down and the rest of the day it runs slow evan if i let it sit for a hour or 2 i dont know why plz help me

 

bring it by the shop some day i'll check it out for ya

 

Where the shop at how much u want thanks

 

Check out your temp-related sensor inputs at the ECU- water thermo sensor, AFM intake sensor, dynamic chamber intake air sensor, rad temp switch, and water thermo valve (which isn't an ECU input, but controls somewhat your secondary throttle plates)