56 Pat Spark Plugs/points

Posted by Bowman Davis On 2009/10/22 10:20:13

I tried to find a thread on spark plugs and point sets for the 56 Pats, but no luck. I started getting what I believe is detonation.
Question, Packard manual recommends Champion N-18 plugs. The plugs that were (and still are) installed in my Pat are Auto lite 57's. The car also came with new still in box set of 8 Champion H-14Y and Champion N-16YC. What seems to work the best for standard service use.
I also have 3 sets of points, one set is Delco-Remy 1918148,one set stamped Sorensen DR-13 and a set stamped with AL but no P/N. All three look almost identical. I did not find any of the numbers in my Packard Manual.