got my 1987 mazda to idle but now its shaking around 700 rpms. it also dies under a load. someone please help.

 

got anymore details other than that? Does it idle fine? does it bog? Does it crank over easy? when does it struggle? Any mods to it? You help us, we'll help you. Also welcome to the club--and try searching to get a basic understanding of previous threads with similiar problems, and if you've found a thread with the same problem then you should post in there rather than create a new thread. But anyways, welcome.