I get such Bad Gas mileage??? like any where from 12 to 14 miles to the gallon don't know why but , u can look below and see what i have in my car the 4.10 gears r not in stalled yet i still have 3.42s and a stock cluch still when i do the installs omg it will be worst i think my o2's r still good they look good still i was told they 4 still good also by other people please help me

 

First off, it's "farad" a ferret is a furry woodland creature Secondly, GET RID OF THE DAMN TORNADO!!!!!

Just messing with ya about the tornado thing, although I wouldn't be caught dead with one. Last I checked I got 17.7 mpg. That sucks. Yours is worse, there is either a problem with some sensors in your car or your foot is too heavy.

John

 

you'll get slightly worse gas milage with that, and will probably take away a few hp...

 

i payed like 80 dallors 4 the piece of shiiiit dammit and scamed them to get 1 for free ill sell it to any1 that wants it do u really think it can make it worse???

 

Yup they scammed you, you could have bought the SpiralMax for 69.95 and saved yourself 10.05$. Once you've removed the tornado and if the car still runs rich, I'd suggest hooking it up to a scanner and read your sensor values and fault codes. There are alot of things that could cause bad gas milage in an LT1. You could throw parts at the car all day long and still not fix it unless you know exactly whats wrong.

I also heard that gas milage can be affected by your sig length j/k

 

Your best bet would be to get it on a scanner so you can see if any of the sensors are reporting readings that are out of whack. A bad MAP sensor can cause poor gas mileage and sluggish performance, but don't just throw parts at it, get some info.