This is an option, although I know the 454 engines available in Blazers, etc. were equipped with HEI. If the newer distributors do not have the third "journal", either the slop up at the top is of no consequence, or there is something amiss with my engine.

Your idea is a good one, but you don't know how tight I am. If there is some way to avoid spending money and use the available components, that is my first choice.

Thanks to everyone for the replies. This appears to be a better forum than the other one, even though this question probably is not quite applicable to stovebolts.