will 42.5 lb injectors work with e85 ?

You'll run out of injector sooner than you think data logging will tell you how far you can go...
My opinion, don't waste your time on 42"s. They are equivalent to 28's when running E85. I would go with at least 50's and preferrably 72 or 84's. You are going to step up to bigger pump, hot wire, adjustable fuel pressure regulator, etc.
I see that you have stock block and stock turbo. What have you upgraded on your TR? We need to know exactly what you have.
i have 42 but are not installed thing of jus to sell them and buy some 80., ruuning 16lb of boost right now .