Which plenum mods please and can you send me Hal's MAP, is it the Platinum 350Z ECU?
We were only able to atain 260.9 WHP on a fresh stock motor with headers, non restrictive exhaust, light flywheel, light pullies.
Are you sure this is not at the flywheel? I deal with Hal and I am sure he would have shared this with us.
Thanks
Drew