I have a 1986 custom deluxe 4.3 L, 4 bbl, AT, 2wd,SWB. I am looking for headers without the pollution stuff added to them. Found plenty for s-10's but not for my truck. JBA makes one part # 1840sjt and Ebay has it for 300.00 about half of everyone else. but it fits a 1988 c 1500 and k 1500 up to 1995. Will it fit my truck or is there another one i should use?