Engine running problems please help
 

I have a couple questions for anybody who would be willing to answer them.

First I have a 1983 camaro that has supposably had a corvette engine put in it but I don't know what year how do i check.

Second the car constantly wants to stall out. It is a throttle body injection and I also cannot get it to time I have disconnected the e s t and it doesn't seem to affect the timing I can rotate the distributor a does not adjust timing at all.

Third About my distributor I have what appears to be a cylinoide it has a single brown wire running to it and it does not plug into anything wires are the but I can not see another end.

I have a check for vacuum leaks I have change spark plugs and gapped them to .035 I do you know that it is a chevy 350 need

help with any ideas thanks.