Last I heard for a price was 700 for Mel's Misters, that was for a set.

I also have been looking at Stage 1 thru Stage 3 Stroke injectors for the 94 to 97 7.3.
Those prices ran from 1200 to about 3000 for a set of injectors, the another 700 or so for a chip to take advantage of them.
But then you also have to figure a modded HPOP if you went with Stage 2 or higher, so you had enough high pressure oil volume to fire them at RPM, and that was another 1500 dollars.
But then you need a more powerful pump to getand keep 70 PSI rail pressure in the fuel rails, so add another 300 or so for that.

Woops, went with stage 3 injectors, now I need more air.
2000 for a bigger turbo.

Might as well have an intercooler, the boost pressure is high enough that intake air temps are through the roof, there goes another 1000 dollars.

Already had the 3" down pipe and 4" straight exhaust installed, that was 350 dollars.

Ok now I have a 650 HP Stroke, only cost me 8,300 dollars for parts to get it.

Stick that Cummins in there, after you buy the conversion kit and start going for more power, those parts are not cheap either if you want big HP.

Still goes back to what the Speed Shops asked back in the 60's.
How fast do you want to go?
How much money do you have?

As for the what does it do to the fuel mileage?

Power takes fuel to make.
If you are in the throttle constantly, you will burn more fuel.

Don't make any difference if you are talking motorcycle, car, truck, boat, airplane or lawn mower.

Take a 200 HP motor, add parts till it can make 400 HP.
If you constantly use all 400 HP, you can figure you MPG is going to be almost 1/2 what it was at 200 HP.

If I load my 86 heavy, run it hard for an entire tank of fuel, yes I can get down to 8 or 9 MPG.

But if I drive it normally, even loaded heavy, 12 or 13 MPG here in the mountains.

 

dave did you do all of those things to your stroke or is that the plan? haha

 

No, I was just looking at parts and mods, doing price checks.

Right now I have modded the IDM to 140 volts like the 99 and up were from the factory.
Adjusted the fuel rail pressure to optimum, BB mod.
3" downpipe to 4" straight exhaust
6637 filter mod which I am still on the fence about, more boost but much higher intake air temps.
Switched the engine, transmission, transfer case and both axles to synthetic oil.
Changed the stuck open thermostat to a 203 degree.
Changed the CPS out to the latest greatest since the old one was throwing a code about once a week.

My 86 still blows the Strokes doors, all four of them off at this point in time.

But then again, my 86 still has a higher compression ratio.
It's running almost twice as much boost as the Stroke is making so far.
And I can blow much blacker smoke with the 86 than the Stroke can.

The Stroke weighs 7300 pounds with 4.10 gears and E4OD tranny.
My 86 weighs 8000 pounds, 3.55 gears with the four speed.
The fuel mileage around town is about even.
Out on the highway on a trip to KC from WV, the Stroke gets about 3.5 MPG better, that was 875 miles at the speed limit for every state, almost all on cruise control.

My next Stroke mods are probably going to be a chip and intercooler.
Several people up in the Stroke forum have added fuel MPG with the chip since it changes the E4OD shift points for the driving you are doing.
They have a couple mountain driving tunes that I think might help me here.

 

Guys... seems like this has come up a lot lately..

Banks still sells complete supported turbo kits for 7.3L IDIs.
I bought one customized to my truck maybe a month ago.
Can't speak for Hypermax or ATS but a brand new Banks kit is on my truck right now.