What is the difference between the 1984 1985 headlamp actuator motor and the 1987 thru 1989

I'm having troubles with my turbonetics external wastegate over boosting won't open I have a 9 to 13 lbs spring in it and it's boosting 30lbs so the question is how do I hook the vacuum lines to it I'm pulling the reference from the turbo compressor side. on the wastegate I have two ports one is vacuum the second is boost I tried it many different ways and it's still over boosting I took it apart and checked the diaphragm and it's good if any of you guys have any info on this wastegate or is

Anyone have a rear strut bar that holds the battery for sale that Tep made?   http://www.racetep.com/arlanrear2.jpg

It is a 4 pin plug that should have a relay plugging into it, it appears anyway. White plug near the 4 ac relays(still have the 4 ac relays hooked up so its not them I hope). Wire colors are as follows   Blue/white Blue/white Blue Black   I traced the first 3 going into the car through the drivers side big harness. Black looks like it nay go to ground.   Car has ac and analog gauges. I checked the service manual and I am still scratching my head.