Man. 1st ever dead out of box acdelco pump.
 

So i picked up a 87 chevy shortbed with new crate 350. pump (in tank) was bad and tanks full of junk. Went and got the ac pump which i have recommended and still will only buy now. put it in and its dead! used my power meter and pulled the tank back out and tested the pump. nothing. slammed it onto concrete and it ran. swapped it out for another delco unit.

First ever this has happened..

by the way,if yall want i can make a build thread for this ol truck.lots a happening.