I have completed rebuiding my '99 Merc 25 horse OB. To check the timing and idle speeds I need a timing light and tach. I have a timing light however I do not have a portable handheld tach. Any suggestions on which one I should look into buying. I really don't want to spend alot because I don't see me using this thing very often. Auto zone does not rent them out - I checked already. Thanks.
