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Hi Steven (and all), Basically, my 73 fastback has never run 100%, despite tune ups by me and others, and lots of fiddling. I get about 80% of what I expect the engine could deliver...I mean, it's no beetle buy my old '74 SuperBeetle w/ stock engine ran like a bat out of hell compared to my Fasty. Unfortunately I've never driven a type III that was 100% tuned (but stock), so I don't know what "normal" feels like. :-/ What do I want out of this car? An engine that runs well, and gives me the power I'd expect from an aircooled 1.6L. I want 65 HP, not the 40 I feel like I have right now. When I initially start the car the revs go up more than I'd like while the engine is warming up (maybe 1 minute)...then they drop back down to a proper idle speed, but it surges a bit. When I drive I feel a surging as well...like a cylinder that's not firing exactly all the time. But I've pulled/replaced the plugs a few times in the past few years, and they always look exactly the same/as they should...there's no plug that's notably sootier than the others. The only time the car accellerates as I expect it should is when the pedal is all the way to the floor...then it pulls consistently (no surging) and with the power I'd expect. The engine itself is totally stock except for a Blue coil and BugPack header w/ single quietpack muffler. I have replaced the manifold pressure sensor (won a NEW one on eBay for $5 :-) and all of the fuel injectors (think one or two were leaking, so I elected to replace 'em all) in the past few years, none of which made a noticeable change in the engine's performance. I've done so much work to this car (new interior/paint a few years ago, new wheels/tires, TONS of welding last summer to replace the rockers and other rusty areas, etc.) that I just want to work the last bugs out of the engine. I don't really understand FI and have more experience with VWs stock carb systems (though admittedly I don't understand carbs SUPER well either). I plan on going at the engine next week with the Bosch D-Jet manual and a volt meter, and also rechecking all the typical tune-up adjustments. A friend of mine and I are also going to check the fuel pressure to rule out the fuel pump (which may be a problem...in order to get my car to start, I typically have to turn on/turn off the key a few times to bring the fuel rail up to pressure)...seems like fuel pressure/supply could be the culprit since it performs well with the added supply at full pedal (??). Well, I'm ranting here...if I've said something above that makes you think of something that I should check (and/or ways to check it), i'd GREATLY appreciate the info, oh esteemed and knowledgeable list members! Thanks again, -Doug :-) 73 Fasty Steven wrote: ____________________________________________________ ougB=> I'm contemplating converting the fuel system => in my '73 Fasty to dual carbs Well, for starters, everyone will want to know why. The conversion is a fairly large hassle on the scale of things, and the best result is less optimal than what you already have. What result are you looking for? => is there a wire coming to/from the FI wiring harness => that I could use to power the chokes? No. The chokes are powered directly off the hot side of the coil, that's easy. Steven Ayres, Prescott AZ '66 Big Ghia ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org