Stock 400 Piston Boost

Rob, as far back as I can remember, the idea of adding boost required 2 things, and just these two items alone.

1: A good cylinder wall finish and a good ring to seal.

2: A wider gap, gapped larger for the amount of boost intended.

When Gramps went racing, this was the finished target goal. Of course you have this idea in your head about the cast pistons. Being to weak. There is some truth to that. Gramps would say, something like, when you get past two atmospheres’, call me.

I don’t have him around anymore. But I think you’ll find this guy very helpful.
https://www.youtube.com/channel/UC8uf_zVTV63l1-uRSx6XbnQ