So I am huge car guy that is new to the buick world but i think i am catching on. So i have a 85. Just performed a 86-87 ecu conversion. Got a TT chip for my set up, a LS1 Maf, Performed a tune up and installed a manual boost controller. I also delete the EGR and all the emissions crap. I have a nasty exhaust leak were the DP meats the Test pipe. Its pretty loud. So I do all this work and taker her out for a joy ride. I have a fresh tank of gas and i have the boost controller set to 12 psi. No matter what i am getting timing retard and the knock gauge is showing knock. Even at part throttle when i am only at 6psi it is retarding timing. The engine runs good. She does have a small ticking noise that i think is a shitty lifter on the Pax side. I am leaning towards false knock. I mean i dont see how the engine could knock on light throttle and minimal boost. Has anyone run into this before. I am going to fix my exhaust leak and the light ticking noise and see if this solves it. Do the 84-85 have knock sensors that are prone to going bad? Is this a common issue at all? Thanks for any help you can give guys. Really appreciate it.