If your area requires emissions testing, you gotta ensure the vehicle you purchase is up to the test or you'll be spending $$$$.
I don't know what the year range for when gm had egr valves. I just know my 79 had 'em.
To have an EGR, your intake must be an EGR-type intake, or you can't even put an egr on it. There should be hole under your carb on the intake on right side w/ two bolt holes. Some modified engines may have this blocked off. However, some previous owner may have swapped intakes and an EGR will never go on it. When you order an intake, one must specify EGR or not. When i ordered my new 383, I specified that I am keeping all the smog stuff on it and wanted an intake w/ EGR. I could be wrong but I think it is the edelbrock performer intake 2901, for some reason that number sticks in my head. I bought a new EGR when I put the motor in my truck.
If someone stripped your engine in the past, they could have taken all that smog crap off of it, therefore, you wont have the TVS, EGR etc....
SgtDel Edited by: SgtDel at: 2/14/06 11:40 pm