When is too big too much?

[ThatGuy4life]

So i've decided to kinda re-do my build a little since I have to pull the head anyway to fix my compression leak. Reason it's taken me so long to fix is cause i've been debating if I wanna change out parts already. My main question here is on an all motor setup such as mine when is too big of a throttle body too much? Here's the current list: bolded are things that I'm upgrading with new mods next to them all Skunk2
Built 2000 B18C5-type R motor
2000 Si tranny
Stage 2 port and polished head
Crower rods
JE pistons
12:1 compression
STR Cam Seal SKunk2 cam seal
Skunk 2 stage 2 camshafts Pro 2 cams
Skunk 2 intake manifold Pro series manifold
REV Valves Springs & Retainers Pro series valvetrain
Act Flywheel
RPS Six Puck Sprung Hub Clutch
TrePerformance 255lph fuel pump
Vission Fuel Pressure Guage
440cc fuel injectors
AEM Cam Gears Pro series cam gears
AEM Fuel Rail
AEM Fuel Pressure Regulator
AEM V2 cold air intake
OBX high flow cat Undecided
OBX JDM ITR 4-1 headers Undecided
Throttle body spacer Replaced with pro series throttle body
APC Cat-Back Exhaust Skunk2 mega r exhaust
NGK Blue Performance wires
NGK Iridum plugs
Will be getting the IM and TB port matched but before ordering the tb wanted to know if bigger is better for my setup?

 

[TurboMirage]

well in the mirage n/a world bigger is always better. stock ive got a 48mm opening, and right now im at 56. 1.5 sohc

the 1.8 sohc guys run the 60mm tb. stock is 52.

definately a big difference when i put the bigger throttlebody on, with the phenolic spacers.

my next upgrade will be some sort of custom intake manifold.

 

[ThatGuy4life]

But would the 70mm tb be overkill?