Originally posted by onemangang
DAMN... I'm ready to bring this engine to the scrap yard. It just seems like every time I fix something on it something else goes wrong. Now I've got a pop or pinging sound that seems like it is coming from underneath the intake manifold. The weird thing though is I just reinstalled the intake manifold after fixing a broken pushrod and the engine fired right up after the fix. I verified the firing order was correct and everything seemed allright. I had my intial timing set at 13 BTDC w/ vac plugged and idle at 1000 RPM. The engine ran great for 15 minutes w/ no noises whatsoever. I then loosened my mixture screws on my Holley to get the highest idle less than a minute later the engine started to POP and PING. I have never had this problem before whatsoever. I tried putting some 104 plus octane boost in it but I don't think that helped either. I turned the mixture screws back but it just keeps pinging. I know this a common subject and I tried to do a search here but couldn't find a good enough answer.
Today I started the car after work and everything seemed fine until the popping started again about 2 minutes of running. When I try to retard or advance the timing it has no affect on the popping. Could I need new plugs?(there shorty accel header plugs) Could there be a problem w/ my MSD? I don't know what to check now. I'm getting pissed now and I usually never loose the cool. I haven't pulled my plugs to see what the look like as they are very hard to get out due to the fact that the heads are equipped with angle plug sockets-the headers make it very difficult to remove or install these when there on the engine. Anybody got any tips or a checklist that I can go through. All replies are much appreciated.
id pull the valve covers back off and check those valves again.