Smog Questions 1985 Scottsdale 3/4 Ton

[1972C10]

Ive got an 85 scottsdale 3/4 ton The truck came factory with a 454 dual pipes and no cat's But friend of mine wants to argue that it did has anyone else had or seen trucks like these without cats. Local inspection place said they failed a guys 85 once and he raised cain and ended up going to the state of texas something and got a piece of paper sayin that the 85 3/4 tons were exempt

But the truck did have two smog pumps And a EGR i have since put in a 350 and ditched the pumps and put an old intake without provision for egr Right now i know i can get a sticker im just wondering about 5-10 years from now because last year anything just about could get a sticker without a cat around here Now there acutally checking them .


Anyone know about the smog laws for these heavy work trucks?