4 bolt main

First off let me introduce myself I am a 22 year old engineering student at the university of Illinois.  I have been lurking on this site for several years, probably just after it was created.  Recently my dad bought a 73 coupe that is very abused.  I intend to help him restore it this summer and some weekends.  check this link for some pictures.

https://netfiles.uiuc.edu/decraene/www/index.htm

Now for my question.  The car has a bare block that is a two bolt main.  How much power can a two bolt block reliably handle.  I have heard wild opinions both ways and figured I would fish for a few more.

a properly balanced 2 bolt isnt anymore likely to blow than a properly balanced 4 bolt..

if in any doubt..  if you take a block into a machine shop they can drill the holes and tap them..  then all you need is 4 bolt caps..

a properly balanced 2 bolt isnt anymore likely to blow than a properly balanced 4 bolt..

if in any doubt..  if you take a block into a machine shop they can drill the holes and tap them..  then all you need is 4 bolt caps..

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Or, if you want to go all out. splayed caps!