06 Jetta BRM, broke the timing belt on the freeway, 103K miles previous owner replaced belt around 85K miles car was towed home. I timed the engine and installed a new "Gates Belt" I rotated the engine at the crank and appeared to have compression on all 4 cylinders however it seemed to have less resistance in two of them. The car runs, I drove it to my garage about 50 feet, it smokes and locks power, I think this is a case of bent valves. My question is how can I make absolute sure before removing the head. Can I do a compression test or is it really dead. Any words of wisdom will be greatly appreciated!!