Hi Malicer,
get a vacuum gauge and hook it to your carb. Tha vacuum gauge is a wonderfull instrument that tells you about:
1. Sticking Valves
2. Incorrect Valve Timing
3. Carb Adjustment Needed
4. Blown Head Gasket
5. Burnt or Leaking Valves
6. Clogged Exhaust
7. Worn Valve Guides
8. Timing
Here is a guide to "vacuum gauge tuning"
http://www.centuryperformance.com/vacuum.asp Frank
