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I am not sure what closing angle is but I am guessing you are talking about point gap or timing since there is really nothing else to adjust on the ignition. The point gap is set with a feeler gauge at 16 thousandths. It is easier to actually remove the distributor to get an accurate setting. The timing is set with a timing light by turning the distributor.
If by closing angle you mean dwell angle, it's 30 degrees for a V8. The usual way to do this is to set the points to 0.016" with a feeler gauge then use the dwellmeter with the car running to verify. Unfortunately it's a trial and error process since you have to remove the distributor cap to make any changes to dwell. On newer GM distributors with the window, you can adjust the point gap (and thus the dwell angle) with the engine running. The 303 distributor doesn't have that option.
Any good oil will service, something in the 10-30 or 10-40 range, sorta depends on the general temperature rang you run in and the condition of your engine. I personally don't use synthetic because I get oil weep through cork gaskets when I do, but others do with no or little issues. A million answers to this question, most may very from mine, but this will work and give you no issues..... Tedd
Hey Tedd, he is talking about oil in the oil bath air cleaner. I would just use some 30W non-detergent which is probably the cheapest thing you can buy.
Oops, my mistake, should read twice post once. Probably 20-50 no problem on the air filter, black spots are most likely carbon and water vapor, not to worry.... Tedd
Hey Tedd, he is talking about oil in the oil bath air cleaner. I would just use some 30W non-detergent which is probably the cheapest thing you can buy.
Originally Posted by Tedd Thompson
Oops, my mistake, should read twice post once. Probably 20-50 no problem on the air filter, black spots are most likely carbon and water vapor, not to worry.... Tedd