A90 Supra B58 cylinder head build up!

The A90 B58 has proven itself to be no slouch. When National Speed asked us to build up a head it fell right in line with us already doing some R&D on the valvetrain components for it with GSC Power Division. We had some great gains on everything we did this go around with doing what we call our Pocket Port R package. Watch along as Dave shows some of the highlights of that build!