[thackney]

I could take any car on the road today and increase it efficiency by 20% to 30% for less then %1500. K&N intake, MSD ignition, mangna flow exhaust, edlebrock intake and exhaust manfolds.

Then why aren't you? If this was such a crisis, why are people not lining up around the block for such modifications?

[superiorslots]

Quote: why are people not lining up around the block for such modifications?

Because those mod's would cost $1500-2500.00 depending on car make + labor. Any offset in increase gas milaeage is lost. Now if the factory did it to new cars.

[TXBSAFH]

I have done this and know people who have. Why they do not I do not know. But it works. All you are doing is letting more air get into anf out of you engine. It increase the combustion with the same amount of gas. As for the MSD ignition, it fires about 20 times a second verses the usual 10 of stock systems. More firing and more O2 means more effecient burn. More Horse power with every gallon. Most people when they get more power back their foots out of the fuel injectors some. This is what save gas.