The duo - signed in January from Blackpool and Celtic respectively - both got on the scoresheet on their Palace debuts during the victory over Pepe Mel’s Baggies.
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Speaking to reporters after the game, he said: "I’ve been able to add that [scoring goals] to my game in the last couple of years, playing out wide but also playing in that number 10 role that I played in today.
"It’s vital that I can get in the box and help Cham [Marouane Chamakh], who does an unbelievable job up there.
"To get three goals today, we fully deserved them. Yeah, they had chances, West Brom are a good team, but I think we fully deserved the three points and it’s onto Wednesday now."
Ince also revealed that boss Tony Pulis gave him a pep talk before his goalscoring bow, adding: "It’s a tough league, that’s for sure, making that step up but the gaffer said to me 'just go out there and enjoy it.'"
Ledley - whose natural position is central midfield - began the game at left-back for the Eagles but still managed to power a header home to make it 2-0, admitting afterwards that he could not have asked for a better debut.
"Last week the result didn’t go our way so it was vital that we got the three points and we managed that," he told Palace’s official website.
"I was playing out of position at left-back but managed to get in the box and get a goal. I couldn’t have asked for anything better.
"That’s what I want to do, score goals. It was a great ball in by Tom and I just managed to get my head on it. I’m just buzzing to get off the mark."
Meanwhile, Palace boss Pulis said of his debutants: "I was pleased but I think the biggest thing about Tom was actually his work and the way he did all the unglamorous stuff that good players do.
"He took his goal with aplomb really and we've been moaning a little bit that we've not scored enough goals from set-plays and Joe's header was first class.
"We are pleased with him, [Scott] Dann [who also made his debut] and Ledley."