Hey, EFI does improve your Fuel milage, it only puts in whats needed after correctly setting it up, no more and no less. Floats leak, power valves need changing, with EFI, once set, unless theres component failure.
I like the 3 dueces and stuff also....I prefer to run it like that, but the efi's are so effecient now, for milage, its the only way to go...
If he wants to cruise and putt around with a V6, more power to him. I was saying its CHEAPER to run a SB V8, EVEN if he wanted to hop it up some....
Back in 64', fuel was alot better, a new fresh motor the 3 speed was exactly what the lite little ponycar needed and wanted with the highway gears.
They can get the milage, they just don't want to. I got 20 mpg with my 1 Ton Dodge, I rigged up a small inexpensive propane system, I'm now getting 26 mpg with just that mod. 30# propane tank lasts me about 1000 miles. If I run WMO at a 10% ratio, in the diesel, I get about 27 1/2 to 28....
-today we have an Exploder with a fancy ass SOHC 4.0 with a 5sp aod tranny and weighs 3200 lbs get 20 mpg at the same fREEEEEEEEKING highway speeds !!- That Explorer has a big honking emission system, fuel is crap, motor oils sucks as far a lubracity is concerned, small motor with low compression, has air conditioning with power this and that, wind resistance is high, sits up high in the air compared to the mustang.
When fuel gets to about 5.50 + a gallon, you'll see folks start leaning out those EFI's and doing stuff to their motors....and 30 mpg will be do-able.
No matter what your fuel milage, fuel will just go up in price. If everyone gets 5o mpg....gas will just go up to fit that....
At altitudes, the EFI's are the way to go.... it can automatically compensate seemlessly.