Your problem sounds like it could be a lean stumble or valve spring float. Did you buy new springs with the cam and were they set up correctly?
As for the timing...since you have an adjustable light, it is pretty easy. Find the TDC mark on your damper. That is the line you will be comparing to your timing pointer. Start your car and let it warm up a little (to reach normal idle...900RPM or so). If you have vacuum advance, UNHOOK IT! Point the timing light at the pointer and turn the nob until your TDC line and the pointer line up (still at idle). See where the nob on the gun is pointing....this is your base timing. It should be about 12* advanced. If it is way off from there, adjust the distributer. Next (with the vacuum advance still unplugged), repeat the above, but have someone take the engine up tp 3000RPM and hold it. Adjust your nob on the timing light until the TDC mark and pointer line up. This is your mechanical advance reading. You should be around 36*. If it is way off, you have some work inside the distributer to do.
Do these measurements and let us know what you find. I can give you some advice on where to go from here once I know where you are currently at! |