Originally Posted by
mtrivera
i use to do about 380 a tank now i do 180 maybe less, how do i set the ignition timing? or do i need the timing light to do it all at once
You need a timing light to set the ignition timing.
It sounds like you have other problems though, more than likely cam timing. Pull your valve cover, align the crankshaft pulley to TDC and double check the marks on your cam gears. I'm willing to bet this is your problem.