i have a 98 5.7 Vortec that i finished a fresh rebuild. I have swapped the factory injection to the MPI and added a cam when i rebuilt. I have a strange scenario where the first time i start the truck it runs fine. The second time i start it it stumbles and will barley run for 10 seconds. I have timed it. after the 10 seconds it comes right back to the idle and runs fine. I am not a pro tuner so i am looking for any help. Thank you in advance..
If I had paid any attention to what forum you had posted in, I would have also told you that you would get more help if you posted in the correct forum. I'm not sure why people think that this is something that should be posted in the "off topic-lounge" section. When you get a log, just start a new thread in the GM V8 gen 3 section. That way the experts for that particular vehicle are more likely to see it.