definitely go bigger, will need custom mounts, will probably need to open up support panel for more air flor

N14 is massive but light and thin. They need a lot of radiator support cut to really utilize it and are a tight squeeze into the engine bay

If you can get your hands on a Toyota Paseo radiator they are a much nicer fit in terms of size and are a nice thick copper radiator. the hose fittings match a-series size and are on the correct sides. Minimal radiator support cutting is required if you want to get air flow to all of it. I run one on my rally car where we didnt want to cut the radiator support out and it runs cool enough to not need a fan at all the majority of the time, we just run a thermo up uphill stages or sitting at traffic