Try bridging the FP relay.
Can you hear the fuel pumps?
Borrow a fuel pressure gauge hook it up and watch it while replicating the symptoms.
used to be RHP
Scotty J. "AKA" The "Mad Porter"
"EMC 2006" 3rd place finisher
Ported BBF iron head specialist
& Aluminum heads from all sources.
Custom ground cams
See our products in the Vendor for sale section
Customized crate engines
"Parkland Performance Auto Machine
" Formerly RHP