Problems after rebuild need help ASAP

Just rebuilt car, its an 88 with mass air. F-Cam, Vortech a-trim blower, ported gt40 heads, ported cobra intake. Only thing done after rebuild was the cam change and ported/shaved heads n ported intake. Installed new 190 lph fuel pump and filter. Car starts when cold now but stalls out after about 15 minutes. Will not restart just turns over n over. Its possibility but not certain that the fuel may be being cut off. Anyone have any ideas?

do you have the bigger fuel lines? your pump maybe getting hot from not having enough flow