Because when they get the car, they find out it stalls every time they try to go when the traffic light turns green.
They bring it to a friend who "knows all about cars" (i.e. changes his own oil) and the friend fiddles with two idle screws and says "try that".
The engine still runs like crap so he brings it to a mechanic "who works on old cars" and the mechanic says he needs a new carburetor that costs $450.00.
The guy chits his pants and goes to Autozone and they try and sell him an Edelbrock for $375.00.
He talks to his friend "who knows all about cars" who says, "Hell, you can get an Edelbrock carburetor for 1/2 that in one of those hot rod catalogs.
He looks at "one of those hot rod catalogs", shows it to his friend "who knows all about cars" and says which one do I want?
His friend "who knows all about cars" tells him to buy the cheapest Edelbrock carburetor and the cheapest Edelbrock manifold to go along with the carb. "Will make the 440 scream better than a hemi" he says.
The guy buys $$550 worth of Edlebrock carburetor and manifold and brings it to the mechanic "who works on old cars" to put it on for him and the mechanic says the hood won't close with that old air cleaner.
In a panic, the guy goes to AutoZone and buys a Chinese chrome air cleaner for another $50.00 that is "good for another 25 hp and better gas mileage".
And that my friends is why.
Btw the way, the Edelbrock never gets tuned in correctly and it still bogs..............