I believe the engine's sensors and computer will negate that by increasing the fuel to maintain the air/fuel ratio it was programmed for.

 

it will but it will only be able to add so much fuel if you still maintian the factory injection system and seriously increase your intake size the fuel system wont compensate that much for the excesive air so you will still have more air to fuel than regualar when i did mine i got an extra 2.5 mpg on mine and i dont' go through fuel like crazy and i stomp on it alot i get 300+ miles to the tank which i think is pretty good

 

Ryan, when you have more air to fuel than what the engine is designed for, it's known as running lean and the engine performance will be less than optimal. Yes, increasing air to fuel ratio will, up to a point, show slightly higher mileage, but 300+ miles to a tank is not too unusual in a Blazer. If you get 20 mpg average, it only takes 15 gallons to go 300 miles.

 

yea i know that, thats why i put 300+ cause i get more than that but back to the air fuel ratio subject i know about lean and rich if you dont necessarily over due the intake it wont be that lean but it will be at that border between too lean and just a little lean thats were im at with mine it gets great performance and a couple of extra mpg too i agree with you rriddle3 your right about what you said we both have the right info just both of us said it not just one of us!!!![8D]

 

An intake will have zero affect on the air/fuel ratio. None, zip, nada. You cannot over do an intake, but you certainly can do it wrong.

 

your right thanks for the correction on that swartlkk my dad just said the same thing we have our shop talk quite a bit and that came up sorry for the misleading info