EXHIBIT 99.8 First Amendment to the 1988 Performance Stock Plan FIRST AMENDMENT TO FIRST INTERSTATE 1988 PERFORMANCE STOCK PLAN First Interstate Bancorp adopted the First Interstate Bancorp 1988 Performance Stock Plan (the "Plan") effective February 16, 1988 as approved by the shareholders on April 29, 1988. In order to have consistent treatment under First Interstate Bancorp's various plans in the event that employees become employees of another company, this amendment is being adopted. This amendment is effective August 17, 1992. 1. New sentences have been added to Section 6.1 of the Plan to read as follows: In the event that employees of the Company or its Subsidiaries become employees of another company pursuant to a stock or asset sale, merger, or similar transaction or in the event of a corporate reorganization, reduction in force or similar event, the Committee shall have the authority, which shall be exercised in its sole discretion, to continue to credit service for purposes of satisfying the restricted period requirements set forth in the Restricted Stock Agreement. Such Committee authority shall only apply to restricted stock granted to individuals who are not subject to Section 16 of the Securities Exchange Act. 2. The following paragraph has been added as a new Section 15: 15. Expiration of Options. In the event that employees of the Company or its Subsidiaries become employees of another company pursuant to a stock or asset sale, merger or similar transaction or in the event of a corporate reorganization, reduction in force or similar event, the Committee shall have the authority, which shall be exercised in its sole discretion, to modify the dates upon which options previously granted shall expire. Such Committee authority shall only apply to options granted to individuals who are not subject to Section 16 of the Securities Exchange Act. Any modification to the terms under which the option would otherwise expire shall not cause the option to expire later than the date the option was originally scheduled to expire pursuant to the terms or the original Stock Option Agreement. Executed at Los Angeles this 22nd day of August, 1995. FIRST INTERSTATE BANCORP By: /SIGNED/ ----------------------- Executive Vice President By: /SIGNED/ ------------------------- Secretary