TOKYO, June 20 The Nikkei opened gap up at 8739.10 after gains on Wall Street overnight on expectations of more Fed ease. It edged up to 8740.65 before falling back later to 8711.22 into the TSE morning close. The afternoon saw it rally again to a fresh high of 8770.41. Most other Asian bourses also gained albeitly modestly with the Hang Seng up 0.62%, KOSPI 0.65% and Sensex 0.2%. The Shanghai Composite is off 0.34% however