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I've just installed LED headlamps in my 1970 Chrysler 300 and have issues with the headlamp doors as well. Things worked fine when I plugged the old hi/low bulb back in on the drivers side and all the rest were LED. Can you supply details as to the resistor I need and where it should be placed...

Thanks for all the input. The pinging was less at night and cool days as expected, but still there under load. The engine temp stays a bit under 180 but there is no nice way to get cool air under that flat hood and still maintain a somewhat stock appearance. The car is a cruiser wih the...

Yes I read all the posts and do my best to take an "average" to come up with a starting point. The new distributor is installed with one black and one silver spring. Set initial timing at 16 without VA using the old timing light (a new one is on the way) and the car is soooo much better already...

Thank you all for your input. The carbs are original and the car does quite a bit of low RPM cruising through town and the pinging has prevented me from cleaning its pipes. Since the general consensus is that the mechanical is coming into early and possibly too much, and the fact that I also...

I swapped out the plugs a few months ago (about 25K on them) The photo is typical of all the plugs.

The pistons are flat tops and based on my old notes, about .080" below at TDC. I replaced the heads with the aluminum ones 9 years ago. According to Edelbrock, these heads were supposed to maintain stock compression. According to Summit's compression ratio calculator which used overbore and...

Hi, I just joined and I hope its OK to pose a question on a C-Body, a 1970 Chrysler 300 convertible with 440 TNT (Magnum) and added 6-Pack. The question at this point is regarding timing. The car always pinged somewhat but its getting quite bad, even a low loads and RPM. I disconnected the...