I have to disagree with Marty's statements regarding the stock kingtech pumps; our tests have shown weakness in the older version (pre December 09) fuel pumps. We have run these pumps for extensive periods and found gear train issues; thus creating engine performance issues. Kingtech has made some changes to the pump housing which testing has shown to greatly improve the reliability of the stock pump.
If Fernandos engine pump is the older version, I would certainly not rule out a pump issue at all.

Fernando, Bumping the Accel delay to 97 is NOT a solution I would want you to live with! Please contact me directly at [email protected] so we can rectify your engine issues immediately.
Todd