Headers for 5.3 Swap?

[C10CONFUSED82]

Forum Members,

Need some help to figure out what headers will work for my 82 C10 5.3 swap. I have done my research and I still cant figure out a set that I can get that will for sure fit. I had purchased some headers that were used, that went to a LS1 corvette engine and they did not work. The issues were that the one of the tubes of the on the driver side of the engine was hitting the engine mount on the driver side. Also the collector were all tubes come together where also hitting the lower control Arm (A arm). These issues did not allow me to bolt it to the 5.3 engine, also these where long tube headers and that is what I am trying to get. Does anybody have any idea as to what set I can get that will work? The truck is lowered with 2.5 spindles and 3" lowering coils.