Hi FABO- first time poster here. Just want to chime in and say that turbo slant 6's aren't dead- I just completed a home made turbo setup on my 1964 Dart. The basics are 225 slant 6, push button 904, home made draw-through turbo kit with an ebay t3/t4 57mm turbo internally wastegated at 8psi. I am using the stock exhaust and intake manifolds. Ignition is a stock distributor with a Pertronix ignitor I module, MSD blaster coil, and the FBO timing plate bought off ebay. Timing is locked at 17 or 18 degrees. Running an overly-large Holley 770cfm street avenger with vacuum secondaries (chose this one because a friend had it and it was cheap). I'm keeping an eye on the tune up with an AEM wideband, using a stock mechanical fuel pump. I think I'm at 66/70 for front & rear jets, black accelerator pump cam, and I think a 25 for the accelerator pump nozzle. Currently wide open is about 11.5, cruise is 13.8-14.2, and idle is usually around 13.0 although it seems to have a mind of it's own at times. I think there may be some fuel pooling issues I need to account for; it likes to load up if I let it idle for a couple minutes. Driving around and varying the throttle it has no ill manners but if it just sits and idles it loads up. I have one mopar style air oil separator breather and another pipe fitting stuffed into the rear breather on the valve cover, both dumping into a gatorade bottle catch can. It uses a lot of oil and internet sleuthing says it may be because of the draw through turbo without carbon seals. Makes great power (not dynoed but tremendous seat of the pants increase) and is way more driveable getting on the highway and keeping up with traffic. Hopefully this combo lives for a while, I really kind of like it! If it does blow tomorrow (it may) hopefully I'll at least have learned something from it. I got a lot of info from here and slantsix.org so thank you all for putting your builds out there for me to get information from!
Here's the turbo setup
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And here's a crappy picture of the old gal at a cruise in. You can see my downpipe in front of the drivers front tire.
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