Alonso today qualified fourth for the race in Yeongam, his best Saturday performance since taking pole in Germany in July, while Mark Webber and Sebastian Vettel locked out a second consecutive all-Red Bull front row.
Vettel's win in Japan last weekend moved the German to within just four points of Alonso at the head of the championship, with many making the reigning champion the favourite to emerge triumphant in 2012.
Ferrari's recent efforts have been hamstrung by a lack of qualifying pace, but there was encouragement as Alonso ended up just 0.3 seconds shy of Webber's pole time on this occasion.
With the Italian team also looking handy in terms of race pace, Alonso is confident of taking the fight to those ahead of him as part of a team he considers the best in Formula One.
He said: "I have confidence we will do a good race, the long runs normally are good for us, yesterday they were good and in race pace there are many factors.
"In qualifying it is just about the quickest car getting pole position, in the race it is not only about the quickest car.
"You need to have good strategy, good tyres, good pit-stops and a good start... so many things.
"On that in general, I think we are the strongest team with all these factors. Thanks to this strength we are leading the championship.
"We need to show our good points and hide a little bit our weakness, which maybe is qualifying. Today we did a good qualifying and we need to use our strong point tomorrow."
Despite Red Bull's show of strength in Japan and here in Korea, the Spaniard insists he is not concerned that his title hopes are fading, and is confident of taking the fight all the way to the final round in Brazil next month.
"I am not worried for tomorrow, I am not worried for the next five races," he said. "It will be tight, as we knew.
"They have one advantage, which is the car, we have the one advantage which is the team, so we will see."