Since there recently has been a discussion on Mallory distributors,  I thought this link may be useful to someone. I know nothing about this product or the seller. Hope this helps, JEFF...  https://www.ebay.com/itm/Vintage-Mallory-dual-point-distributor-zc343d-ford-y-block-mercury-rare-v8/163966885841?epid=20028494400&hash=item262d301fd1:g:AQYAAOSwLy1d4Wy5


64F100 57FAIRLANE500