still have knock

[TurboToy]

last week i drove it and had up in the 20's tonight i was not WOT but i would say about half on it and had 10.XX ' where should i start looking all my vac lines are on good and tight but scan master shows but only pulling boost. could the chip be the colurpt, it has a pit bull 93 oct chip. if anyone has concoured a knock problem any info would be appreshated

 

[Dan Thompson]

THDP are big and there is not much room between the crossover pipe and the frame. I would check to see if it is hitting.

Engine tie down working? Bad motor mounts?