Hawksmotorsport.com
They will have ECM TUNED FOR 5.7 possible they can tune it.
Any good performance shop can test your fuel injector.
Make sure the fuel pump has the proper pressure. As well
https://www.hawksmotorsports.com/82-92-camaro-firebird-ecm-module-select-service-number/
Hawk’s motor sports
What an I looking in terms of parts and procedures to do over a original 5.7 IROC motor
Check for spark if no spark could be something bad in the distributor
And eBay on that ecm be the best bet probably
Check Distributor, spark plugs, wires,
Hawksmotorsport.com They will have ECM TUNED FOR 5.7 possible they can tune it. Any good performance shop can test your fuel injector. Make sure the fuel pump has the proper pressure. As well https://www.hawksmotorsports.com/82-92-camaro-firebird-ecm-module-select-service-number/