I don't think it's him. Even if there's a lot of similiraties in the vocal range.
As far as I know Seppo Salminen is an award winning Producer / Drummer / Educator based in Toronto, Canada. His work has been extensive and has included everything from drummer and multi-percussionist, to engineer and producer, to custom drum set builder and teacher/clinician. His work includes music for corporate video productions, commercials, and radio programs.
Seppo is a talented drummer/percussionist. He has over 30 CD recording credits under his belt. His technician and custom drum work has led him to work with a variety of top professional drummers including Charlie Watts of The Rolling Stones.
But I don't think that Curci work with him. At least, if they had collaborated together, it seems to appear nowhere. But I'm not sure at 100% cause Avavalanche Canada (There's a lot of bands with the same name) still remains a very obscure band and informations are very poor about that combo.
BTW, good song, thanks for posting it.