Lets talk throttlebody

Ok I know lots of you guys are running 65mm here and some are using 70mm but Im starting to here of lots of guys going 75mm and larger. Im talking 5.0 here because I know mod motors are a different animal. At what point in your build up do you need to consider going bigger than 65mm?

Lets hear everybodys opinion.

Well, we'll find out soon for me. Have a 70 right now. When I get my heads & TwEECer and install my ported lower, I'll dyno both and we'll see what I gain/lose.