Last time i was on this forum was over 9 months ago, so my mods are way off(it´s not even the same engine anymore). The 516hp was my last dyno (in Canada) with the old engine like the mods show but that engine spilled it´s guts on the track when a piston seized up. This engine uses my original NA block and that´s it everything else is modified, the 10.6sec 1/4mile is achieved with slicks and race gas which i did not have access to in Canada. I´ll update my profile later and maybe post a few videos.