so the other day i was driving my 87 350 iroc and at a stop light it started idleing at like 1000 and then it died so i started it back up and drove home. the vacume hose was popped off but i put back on and drove it again it was fine till i gave it alittle gas then it dies it will stay on for about 3 minutes if u just barely give it gas it dies. whats wrong also the higgh pressure gas line started spraying wehn it was just ideling in the drive way any suggestions as to what is wrong