what up this is my interductoin and I have a question
 

ok bought a 1986 RX7 that won't start for $500 perfect body no damage or rust. When they tried to start it it just backfired any Idea what it could be? By the way my name is Brandon and I live in central Il.

There are lot of factors involved with that condition. I can suggest start with timing, ck for intake leak ck ACV ck for AAV, BAC, ck injectors, ck water temp sensor, ck fuel system and ck compression.

What is the ACV, AAV, and BAC?

Air Control Valve
Anti Afterburn Valve
Bypass Air Control

Do you use a volt meter to check those?

try a basic tune up