New alternator and battery high rpm then dies

[STITCHES]

I took my 87 dx to the shop to get the alternator replaced. Beforehand I had also bought a new battery about a month before.

When I had the alternator replaced I noticed the battery light came on. When I go to start her she idles high to about 3k rpms then it dies. This happens in a span of less than 5 seconds.

Before I had the alternator replaced all it needed was a jump and it ran perfectly.

Any ideas to what those guys did to my car?

EDIT:

Just put in a Weber carb and the "new" alternator I had was bad.

[Bluntman]

I took my 87 dx to the shop to get the alternator replaced. Beforehand I had also bought a new battery about a month before.

When I had the alternator replaced I noticed the battery light came on. When I go to start her she idles high to about 3k rpms then it dies. This happens in a span of less than 5 seconds.

Before I had the alternator replaced all it needed was a jump and it ran perfectly.

Any ideas to what those guys did to my car?

Try disconnecting your battery and then reconnect it. Never mind yours is not injected and sometimes the ecu needs to reset.

[POS carb]

there is a a 1 wire plug at the rear of the carbed, make sure it is plugged in