The 19 year-old beat Canada's Harley O'Reilly in a points decision Friday night in their semi final clash on the Gold Coast and said he was made to work for it.
"Honestly it was very close, too close for comfort. Next time I want a unanimous tomorrow...I think my power shots won the fight: I felt like I was more stronger than him and pushing him back on the back-foot so that's what won be the fight but it was a very tough fight, very good opponent," he said.
Samoa last collected a Commonwealth Games boxing medal in 2006 but have never won gold.
Ato Plodzicki-Faoagali said he would give his all to change that against Welshman Sammy Lee.
"It's a once in a lifetime opportunity. I'm just taking small steps man, I'm still young - I'm getting fired up for this next fight man...he was the last year's winner (at the Commonwealth Youth Games) - he won gold. I took on bronze but I never faced him but I'm happy to face him tomorrow," he said.