I'm no expert on (lol oops, said "GM" but I guess it's) American engines, but I bet that engine is shared with a lot of cars. Check the hot rodder forums to see if tuning the ECU is easy. Get a narrowband O2 emulator and run it lean, it'll save you a good amount of fuel while not being as risky as shutting off cylinders.
Last edited by serialk11r; 08-22-2015 at 11:06 AM..
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