00 integra gsr with a constant mis fire. Converted to obd1 ecu (stock) has new distributor coil, head cleaned/resurface, freshly built block from a shop, new injectors. Pulled the plug one by one and the misfire got worse. Any help is appreciated!

 

Did you set the valve lash?

Mech timing is set correct?

firing order correct?

Which plug had no change when pulled?

 

Timing is dead on, valve lash was done and all of them had change.