Hey all, once again asking for your excellent advice.

So I've got this 1970 142S with under 130k that I've had (mostly as a second vehicle) for about ten years. It runs and drives okay around town and is almost entirely stock.

I recently got a bonus check for around $1000 and wanted to know what kind of upgrades\repairs I should make. My repair skills are about the IPD 2 level (out of 3). My goal is to make my car highway ready. For as long as I've had it, at anything past 60 mph, it shakes, sounds like a hive of bees are buzzing underneath it, and the engine makes an awful racket in any gear at over 5000 rpm.

I'm not sure whether I should get headers, new exhaust system, Weber carb (instead of the re-built Strombergs I currently have), new u-joints or what. I just want to make sure I don't waste the money on something that won't achieve the desired objective.

Granted, the most logical solution would probably be to buy a 240 in decent shape and get rid of the 140, but I'm stubborn and like my car.

All thoughts and opinions are most welcome.