I have a 1980 Chevrolet C-10 with a 350sb. The intake does have an EGR valve. The carburetor has an after market air filter. Nothing fancy or race type, just a round housing with a paper filter in it. The truck easily passes tailpipe emissions thanks to the miracle of ethanol. The problem I have is, I took it to get it state inspected. The guy told me I'd have to get new wiper blades. I did need them so I was like ok then and bought some from him.
He installed the wiper blades and said I will need new tires soon that mine barely made it. Ok, fair enough. All lights worked, horn worked, then he popped the hood and sighed. Said I would need the original air filter housing that came on the truck. My truck runs smoother and cleaner exhaust with the new one. I don't have the old one so what do I have to do? He offered to sell me one he happened to have "laying around" with a new heat riser tube. Except my manifolds don't have the place to put a heat riser... Is this really necessary to pass or is this guy just trying to rip me off?
I believe I found my answer in the inspection guidelines from the DPS. My vehicle originally came equipped with thermostatic air cleaner. However, like I said my emissions testing comes with better results with the after market filter and housing installed. I passed with it the previous time so I just sold the old one off because it was just taking up room.
OH! and the premise behind the Thermostatic Air Cleaner is that the heat from the exhaust is pulled through the carb, thus reducing choke time on engine warm up. However, I have electric choke and I live in Texas so it stays wide open all the time.
He installed the wiper blades and said I will need new tires soon that mine barely made it. Ok, fair enough. All lights worked, horn worked, then he popped the hood and sighed. Said I would need the original air filter housing that came on the truck. My truck runs smoother and cleaner exhaust with the new one. I don't have the old one so what do I have to do? He offered to sell me one he happened to have "laying around" with a new heat riser tube. Except my manifolds don't have the place to put a heat riser... Is this really necessary to pass or is this guy just trying to rip me off?
I believe I found my answer in the inspection guidelines from the DPS. My vehicle originally came equipped with thermostatic air cleaner. However, like I said my emissions testing comes with better results with the after market filter and housing installed. I passed with it the previous time so I just sold the old one off because it was just taking up room.
OH! and the premise behind the Thermostatic Air Cleaner is that the heat from the exhaust is pulled through the carb, thus reducing choke time on engine warm up. However, I have electric choke and I live in Texas so it stays wide open all the time.