They are both GM products why would you?
Despite being nearly the same size, they are 2 very different engines
The Oldsmobile block is a different Bell housing pattern than the Chev But Most 305 were the Chev engine regardless what GM product they popped up in
only if the trans is from an olds, Buick or Pontiac engine. The bell housing bolt pattern from these engines is different from a chev block
No it will not, not even close.
You take it to chev dealer.
yes, HEI distributor
yes
http://www.oempartsguys.com/blog/how-to-find-your-replacement-sun-visor/
No.
In canada I just got a quote for 1400 from a Chev dealer. Could be cheaper else where, but at least you got something to gauge it.
Need to know what size engine you have to tell you if it is an interference engine or not.
320 h.p.