Honda Repair: ignition timing and idle, port fuel injection, 1986 honda prelude

Question
I have a 1986 Honda Prelude Special Edition, with a 2.0 litre port fuel injection. Looking through the Hayne's repair manuel it says the timing specs. are on the veci label {vehical emissions control information} which is supposed to be located under the hood. I have searched everywhere under the hood, the door frames, the trunk as well as the glove box in both my car as well as a friends 86 prelude, with no luck. Any suggestions as to where to go from here? Also the idle is erratic, hunting up and down. Ihave tried to find a vacuum leak{with no luck}.When adjusting the idle screw the idle does come down and stablizes. The manuel says that if all the idle components are working correctly this screw should not have any affect on the idle at all. Oh ya, another detail is that at 5000 rpm the motor seems to die out and loose all power? Any insight on where to look would be greatly appreciated.

Thanks,Larry.  

Answer
Larry,
All emission labels on Honda vechicles are under the hood. If your car does not have one, it can only mean one thing. Your car at one point in time had its hood replaced. Probally from an accident, or it was repainted and the label is now covered in paint. What you should do is stop by a honda dealer, and ask to look at thier service manual. Most dealers will do this for you.
About the idle, your manual is wrong. Why would Honda put an idle adjustment screw on the car if it has not effect or purpose? Sorry to say but the Hayne's manual is not my first choice for information. To me it sounds like your fast idle valve is leaking air. You can adjust it by loosening the 2 phillips screws on the top, and turning it in 1-2 turns. They tend to leak thru time. Then use your idle screw to adjust the idle. If that does not fix it, you will need to replace the IACV. (Idle air control Valve).
About the 5000 rpm deal, that will be hard to diag. over the net. One possibility is the ignition coil. They tend to cut out at high rpm. When the coils get old, they can't meet the spark demand at higher RPM.
PS- what is the redline on this car? 6000? Are you sure you are not hitting the rev limiter?
Good luck!