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Just make sure it comes out of lean for anything more than light load. I did the IAT thing on a car back around 2000 to make it run leaner and it burned all the exhaust valves.
But last year I did a lean tune on my carbureted 7.4L suburban and got better fuel economy than the new suburbans that have fuel injection. Then when I tore the engine down the exhaust valves had no sign what so ever of burning. I attribute that to being able to richen the mix as I gave it more throttle.
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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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