Yes I was quite surprised at the gains myself, I knew it worked having done it myself in the past, but had never quantified it on the rollers before to know exactly how much by.

Im on the same XE inlet cam on my nova, with 457bhp, and specky made 489bhp recently on the same one too. (unlike the article we also both have the XE exhaust cam too)

Id like to go a little hotter though at some point and compare again, as I think on the bigger turbo installs some of us are doing these cams are starting to get restrictive now.