Just installed the mini-ram. Changed some spark advance tables and car is running okay for now. The engine seems to be running fine, but the tach drops all the way down to 0 once it reaches 3 grand. I can still rev it up - it's just tach. I did not have this problem before installing the mini-ram. Has anyone else had this issue?
Are there any values on the chip that may be changed to remedy this?

-Mark