So I have a 91 camaro (S AUJP v5 8D) I've been tuning back up in Idaho. Startup was perfectly fine up there. I recently road tripped down to Mississippi car hauling it down here and now my startup seems rough. It takes around 5-10 seconds of cranking before it'll actually start. I'm in search of some ideas for the tune to figure it out. I recorded 2 startup logs just to see if I could find something off, but it seems to be spot on unless I'm blind. I will attach the logs to this post here in a second. I'm just looking for some ideas to help my situation. The car has a pretty big cam in it, Comp Cam 280XFI HR13 (280/288 .576/.570) 112 LSA.

 

Here are the two recorded start up logs.

 

Fuel pump failure? Verify fuel pressure does not fall off under load. also I would replace the fuel filter if not done recently.