I have an aluminum block in my Valiant but some of these guys have me scared I'm going to blow it up if I get on it. I baby my car but would love to try the turbo boost thing. How to start and where to get the goods is my concern.
It's completely possible you could run into trouble. Since the aluminum blocks have an open deck face they have no support at the top of the cylinders plus they don't have a lot of head gasket sealing surface so as a result, they cannot stand a lot of cylinder pressure.