I have a '84 Camaro with stock 14" wheels. Around 65 MPH i get front end vibration that shakes the steering wheel. Tends to smooth out at higher speeds, my tire wear is even could my sub frame be out of alignment?

 

No, my first bet would be an imbalanced wheel.

 

That, or a farkled tire. (that's a technical term...)

Swap your rear tires to the front and see if it clears up. If so, it's a wheel/tire problem. Swap em back one at a time; when the problem returns, that's yer answer.

Don't outsmart yerself. It's just a car. Doesn't get much simpler. Use logic and common sense, and you will almost always be rewarded instantly with truth.

 

If moving tires around doesn't clean it up, it might be the rotors. Do you get any pulsing when you hit the brakes?