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[hasa]

Look this article about "Fire rings": https://5150autosport.com/blogs/prod...yT8u8fE6luTN6u...

[hasa]

I would try normal head gasket. You don't need more than 1bar / 14psi boost. If it fails, then add cut rings and still use std gasket.

[hasa]

You need a standalone engine management like Maxxecu or similar. Then +400cc / 40lb injectors. Sachs 618 clutch. Good tune on a dyno. Then you have 350hp....