need 1978 smog vacuum routing diagram

[zzeeksfiat78]

hi gang,
Have a 78 with california smog on it. Finally got it running but when it gets to 190> it lugs down and runs rough
the EGR valve works when vacuum line is pulled off . I can follow the line to the electrical valve an also to the intake manifold
theres a two port vacuum/temp operated valve. these i understand are hard to find. i did find one at $42 + called a red valve.
any help is appreciated.
thanks'
zeeks
zeeks automobile restorations

[So Cal Mark]

the egr valve shouldn't open at idle, that will cause very rough running. It should be connected to ported vacuum and only open once the engine is warm