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H2 hummer tune

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My friend on the eastcoast of Australia is having an issue with getting his hummer tuned.

It is running a v2 vortech with an water to air heat exchanger. Injectors have been upgraded and it has been reflashed but is having problems with surge at light throttle and overfueling off throttle.

It is blowing flames on decel.

Cold starting is also not great.

I am fairly certain that it uses the same ac delco computer used for the ls.

Is their anyone on here that could take it on?

We usually reply within 12hrs (often sooner)

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