Engine Build Tech Help

Sounds like you picked all the parts and pieces.
8.4 dynamic, 87-89 octane motor. Nice.
I don't mean to sound like this.. but whoever told you that you want to build an 8.1 dynamic or lower... is a...eh.. 'someone you shouldn't listen to'.

I edited out '******* idiot' to be considerate.
To be considerate? Looks like someone has hijacked your account. :)