Any ideas on how much fuel per hour a stock 2.8 burns idling? I'm running mileage tests as I improve my truck. So far I've done a no cat exhaust, full tune up, smog pump delete, set the valve lash, and tuned the carb. It's an 85 2.8, 5 speed with 3.73 gears and 32x11.5 tires on aluminum wheels...