One little nit pick issue. The right rear plenum bolt can be slightly obstructed by the supply & return lines entering the fuel rail block. On my 90 those lines prevented me getting the T45 bit to sit squarely on the bolt head. I felt there may be a risk of stripping the head. I loosened the three T45's that hold the 1/2's of that block together to get some movement on the two fuel lines.
If you loosen them a bit you can rotate them enough to get the Torx bit to sit squarely in the bolt head. You can disconnect them entirely as Jerry has the o-ring kit for those blocks. That maybe something I do the next time I pull my plenum as all those O-rings are really old on my car.
I would buy a new check valve for the secondary hose assembly, new ignition coils, test the connections on that hose assembly for vacuum, test the secondary actuators to see that they fully open at 8" Hg, re-seal the CCVB cover if it is leaking, test the vacuum tank & control solenoid, new plug wires......clean out the drain hole, check the starter connections,
I'll think I'll stop now before you start to throw things at me! Oh, test the three way vacuum check valve for the A/C system while you're there
Tom
P.S. If you want help PM me. I don't know where Delanson is but I have GPS 1.0 in my C4....map of NYS
