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Gen1 1968 Coupe Build Thread Profile - Gen 1 Mustangs

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It's been such a cold and rainy spring that I haven't had a chance to get out with the car but twice. Typical midwest spring; two weeks ago we had some 70°F days and then last week we had snow, with lots of dreary rainy 45°F days between. Car's doing good so far though! Did the first oil change and nothing crazy to speak of; typical break-in glitter and some of the skirt coating but nothing silly.

Everything's all tidied up now and in place. New filter element air cleaner top and a 14x3 filter with a sock over it. I'm not expecting to do any off-roading but I have ended up in the gravel trap before so you never can be too safe :rolleyes: 🤣
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Been working on getting the mixture dialed in. I added a secondary metering block so I could adjust the secondaries easier vs a plate. Started out at 72/80 and that was a bit rich showing mid 11's pretty consistently across the powerband. I changed it out to a 70/78 and.....I have no idea what it's at because i forgot to screw my O2 sensor in 🤣 🙃 Went for a drive and got on throttle and thought "crap better take it easy something doesn't sound right". Well I found the issue back in the driveway, O2 sensor was still tucked up under the car after dropping the exhaust for some unrelated work shimming the transmission. Idle screws are pretty far in (compared to before) at like ~1/2 turn out vs the typical 1-1.5 but it's happy. I know there's some faffing around I could do with idle air bleeds, etc but it spends a majority of its time at WOT so it's not too big a deal for me. High 13's and about 12-13 inHg of vac at idle around 850 rpm isn't too bad.

Unfortunately dealing with some more health complications at home, so we'll see how many events I can get out to this year but it should be a lot of fun. Driving I can certainly feel the difference in powerband! It's no slouch down low but it's certainly happy above 3k. It is fun to just sit there and listen to though 😍


As mentioned, It's been crappy weather so been doing some more of those "one of these days" or "should check but not that important" tasks with the car. The two big ones was getting the driveshaft angles tweaked a bit and actually measuring my bump-steer. The driveshaft angles were never bad but just needed tweaking. They're about 2.5° front and 2° rear now.

I've also got the ability to adjust bump-steer but the current position matches an approximate point for an OE ball joint. I wasn't too concerned about the overall absolute values but moreso the trend; Just using a plum-bob and metric rule gave some coarse results but it did the job. From the graph i can shorten the tie rod by raising the outer point, which agrees with my CAD model estimates. Overall not bad though, only about +/- 3/16" toe deflection in rebound/compression. The car's never felt darty so this kind of confirms that, but it's nice to know information.
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