Businessman turned-Federal MP Clive Palmer claims he will use the balance of power in the Senate to get WA a greater share of GST.

But he stopped short of explaining how he would go about it.

He also raised doubts about how much of his business dealings he would make public on going to Canberra, saying the mandated register of MPs' interests was "pretty general".

He said that if his Palmer United Party won a seat in WA's likely second Senate poll, he would ensure the State got its "fair share" of GST.

"WA makes all the wealth and it goes like a pipeline to Sydney and Melbourne," he said.

"The people of Perth, they just miss out."

PUP candidate Dio Wang looked to have a WA Senate seat but was bumped out in the re-count fiasco when the Australian Electoral Commission lost 1375 votes. This makes a new Senate vote almost inevitable.

Mr Palmer, representing Sunshine Coast seat of Fairfax, was unable to say how he would get WA more GST without infuriating other States.

He confirmed he would attend this week's opening of Parliament, despite earlier saying he might not because he was ill.

"I have just got a cold," he said. "I only have to get a sneeze and the nation stops."

Mr Palmer brushed off concerns about potential conflict of interests he would face as a wealthy man with myriad business interests while also being a Federal MP.

He said he would disclose what was needed on the pecuniary interests register but hinted that was unlikely to show his real worth.

Mr Palmer said he would talk about the media and the election result in a televised National Press Club address he is due to give tomorrow.