Sorry for the short rant first thing this morning. I know there are some people that are set in their own ways about it not making a difference but if he is coming around that's a good thing.

Hopefully this is his problem and with a few tanks of good stuff it will clear up. Let us know

 

Well I changed my plugs again, back to iridiums, nothing wrong with the platinums, just didnt want the wrong plug for too long. Plus i developed a hesitation issue similar to yours. Anyways, while i was putting it back together, my shop light fell from my hood and hit me in the head, landing behind my intake plenum. It hit me what the problem was, the rubber coupling, though tight, was allowing light to pass through it, telling me i had a huge vacuum leak, i used a very very very small amount or rtv to seal it up, not more hesitation, and better mpg.