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If you look at my old e-mails you will see that I and others had this problem before; Car running rough at higher speeds, car sometimes having that push/pull effect on highways, loss of power the faster one goes and overheating (checked looking at smoking dipstick). My first problems were that I had bad wiring, used Bently and the internet for schematics, checked and fixed wiring; next I found stickey injector points that floated at higher speeds, found grease on the hinge turned to glue and stone , cleaned those up in gasoline and put new lubricant on them ; found an erratic pressure sensor that still held vacume, I replaced that (found the problem while using someones good one, much bigger story than this); found that my injectors sprayed ugly pattern erratically (used car's system as test set) replaced those with junkyard ones that had a good pattern, worked better but still funky at higher speeds, tested these using the pedal pump feature in my EFI (not all EFI has this option) found that eventhough the injectors had good pattern they would cut out at higher pedal pumping (engine off, efi on 25 injections per pump a second, 3 pumps a second equals 3500 to 4500 RPM) ; replaced with rebuilt ones from Python and found 8 bad ones that would cut off at higher speeds and had less flow (sucking brand) , bought Bosch and one rebuilt from Bret instruments and these had great flow capacity and no cut off at equivalent to 7000 RPM ; Uphill low power , upon much pain and suffering I found my distributor center lobe assembly completely stuck with stone grease and corrosion, this assembly was supposed to rotate with the weights and the vacume advance for total advance of 23 degrees to 25 degrees (depending on model), dissassembled top part of dist (was not easy at all , much pain and suffering here) cleaned, lubed and reassembled ; Idle not working well, too high at times and too low in others found erratic air regulator valve , repaired it using draconian methods. This is a shorter list and more simplified version of my long painful journey. You can find the super long version of each case in the past threads for this and last year. Each phase made my car work better but still seemed not fully cured . The result of my process was very good acceleration (see cars in my rear view mirror all of a sudden and passing real estate quite quickly) top speed that I have gone now was 95 MPH (no winds of course) with absolutely no hesitation and some pedal left over. Hill climbing is better than the Bronco II I had with V6 and better than an Escort I had also Gas mileage is better. Engine starts within 1/2 second when cold while standing outside of car and turning key (no gas pedal pressure). Smooth as glass at all speeds with absolutely no missing. My engine is bone stock with only mod is the exhaust. LEON MARTINEZ 1969 SQUAREBACK EFI/AUTO SAN DIEGO AND TIJUANA ------------------------------------------------------------------- Too much? Digest! mailto:type3-d-request@vwtype3.org Subj=subscribe