wow swap of dist takes even ign mod out of pix. I assumed you pluged vac line to egr so it stays closed not good for nox levels but if that prob eng will run better thru all rpms. also i believe you have a knock senor could cause prob. I know 95 is border line for ecms so i dont know if that swap helped. a way to check if you have intake gasket has leak is spray starting fluid around intake if idle increases theres a leak take care not to start fire.