How to choose the right map sensor
 

So as im getting closer to my na-t build, I am having a hard time selecting which map sensor to go with.
I understand that a 2 bar sensor you can boost up to 14 pis
3.5 bar is about 32 pis
and 5 bar up to 56 psi

I plan on running an unopen ge block (stock 10:1 compression) and e85 most of the time.

I am going to have 2 tunes, high and low boost.
Which map sensor do I want to get.
I understand the 3.5 has a lot better resolution and is more accurate than the 5 bar.
But if I want to run e85, should I be looking to get the 5 bar?

Whats the max boost on e85 on stock ge block? (I don't know if this helps but I plan on running either a s362 or s366 with the 1.00 divided a/r)

Max boost is not the question Torque is the issue 600 numbers is were the stock internals begin to fail: IE bent pins, pretty curves in rods.
I would also just use a 3.5 bar map.

just out of curiosity,
does it also matter what brand map sensor you use?
aem, gm, stock gte map?

im curious because you can get a gte map sensor fairly cheap.