Just wanted to say thank you, thank you, thank you guys. Took your suggestions about cleaning out IAC port hole with crc mass air flow cleaner. first. Man what a differance it made. Cleaned out/flash it till fluid looked clean. Took for a 20 mile run and it purred like a happy kitten. What really surprised me is that it eliminated my popping. Won't be going for a dyno tune up after all. I'm a happy camper.

 

yup these maintenance stuff makes a difference!