Originally Posted by Plaid13

The engine size dosnt matter at all they test by percentage not by amount. But... being that its stroked to 383 most of the time when thats done its done for performance and when going for performance they tend to use a more aggressive cam shaft alot of cams are not street legal and will pollute more. so make sure the cam thats being put in the engine is something thats ment to be drivin on the street not just as a race part. other then that just as long as you have catilitic converters and the carbs mix is tuned right and the timing is set correctly so all the fuel is burning it should pass. as far as visual inspection goes thats really dependant on the area you live in as to what they look for or if they even look. most of the time where i live the visual inspection is just them walking past with a mirror on a stick under the car/truck to make sure the cats are still on. If it dosnt sound like its a race engine the most likely wont even pop the hood. If they are real picky they might want to see a egr valve on the intake but personaly i wouldnt worry about that. Try putting a stock looking air intake on top of the engine with the hose and everything big black metal ugly thing with the air filter in it and a few vacume hoses comming off and the big air tube going to behind the grill to the intake. When they see that they will most likely assume everything under it is where it belongs for that engine. If they see a big chrome intake they will tend to think its ment for performance instead of daily driving and might start to wonder just whats going on under the hood a bit more.
Good luck with the testing. I have always wanted a jeep with a V8 =)