Ok, searching need some help engine tick and mbc questions

[rhdsilvi85]

ok everyone so I've been on a search and destroy mission trying to figure this out and I just dont' get it..

ok so I drove my car for the first time in a year after it got worked on.. and I noticed its got a ticking sound.. at a cruise speed it doesn't tick but at when I give it gas it start to make tickin sound.. so I know I have exhaust leak which im going to fix it tomorrow but anything else? I tried the hammer trick for the tick and it didn't work.. I know what the injectors firing sounds like and its not that either.. some one said it could be air in the lifter?

second question is my turbo xs boost controller

I have it connected waste gate to side of the controller and bottom of controller to the nipple on the hot pipe is that correct? I have I turned all the way to the - side and I took my car out and hit like 15lbs and said oh shit and it wasn't even under full throttle any other way to test if this isn't working? or maybe im just dumb..

thanks guys