wondering what kind of timing curves a stock ecm has vs tuned ecm
i have a black bear tune, watching a scan tool while driving i show 32 degrees at idle and at 2600 rpm cruing down hwy i see 28
old school tuning on an hei with vaccum advance on a 454 i usually have 16 initial 36 by 2500, and a vaccum advance to get around 50 for mileage ect,,,
below is a couple charts i seen posted on a chevelle forum a guy is running, i tow 6000lbs regularly, looking for some power and mileage, even with the black bear tune i havent seen any results i can speak of, lower fuel mileage than the stock tune is for sure though, solid 3 mpg i have lost,
done all thge things to a fresh motor tune up parts ect, new blue knight injectors from 5.0 with fuel pressure regulator, cat back dual ekhaust 2ea 3in pipes and mufflers,
looking for advice, i have been intouch with christian on here about a 0411 swap and tuning
i have a black bear tune, watching a scan tool while driving i show 32 degrees at idle and at 2600 rpm cruing down hwy i see 28
old school tuning on an hei with vaccum advance on a 454 i usually have 16 initial 36 by 2500, and a vaccum advance to get around 50 for mileage ect,,,
below is a couple charts i seen posted on a chevelle forum a guy is running, i tow 6000lbs regularly, looking for some power and mileage, even with the black bear tune i havent seen any results i can speak of, lower fuel mileage than the stock tune is for sure though, solid 3 mpg i have lost,
done all thge things to a fresh motor tune up parts ect, new blue knight injectors from 5.0 with fuel pressure regulator, cat back dual ekhaust 2ea 3in pipes and mufflers,
looking for advice, i have been intouch with christian on here about a 0411 swap and tuning
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