So I got my engine rebuilt and the ship didnt do a great job. I was driving it and then it lost power. I would floor it and it was unresponsive and it smelled like gas can it be a bad mad? Here's a link on how it sounds thanks

 

Any check engine light ?
Mad or do you mean maf ?
Stock multec injectors ?

 

yeah mass air flow sorry and it does have a check engine but its had it for a while because it has no cats and it has stock injectors but they're new

 

What codes do you have ?

 

I had a friend check it with his scanner and it said mass air flow sensor and connector, but also Ive noticed that when I turn on my head light and fog light the engine wants to turn off and it idles crazy. Could it be a bad alternator? Thanks

 

You can certainly have the alternator tested most auto parts stores will do this for free.
You might want to retrieve the codes and follow the flow chart for Maf diagnostic.
33, 34 and 36
http://chevythunder.com/fuel%20injec...0pg%20a.htm#33
Chevy thunder also has flow charts for these codes
http://www.chevythunder.com/maf_code_33.htm
http://www.chevythunder.com/maf_code_34.htm
http://www.chevythunder.com/maf_code_36.htm

 

thanks 👍

 

Btw you can easily check your own codes with a paper clip.
https://www.obd-codes.com/faq/read-g...codes-free.php