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I only added the manual switch after my torque converter lockup turned to dust for trouble shooting.
I wont run the lockup in 2nd gear. I didn't think it was a good idea.
I drove this 7.4L powered suburban as is for 55 miles and it averaged 6.5mpg. I cant say for sure that's its driving around town fuel economy, but the trend is pretty clear. I filled it up and its not leaving the yard again until the edelbrock carb goes on there for tuning or unless I have my very large trailer on it. I also picked up a used edelbrock oval port BBC intake manifold, since I don't want to use a spread bore to square bore adaptor.
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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
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