Probably be a good idea to do some kind of intake to flow some more air and also a better flowing exhuast, Ive heard that those truck sound bad *** straight piped.

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And also a egt guage to make sure you dont melt things down while your haveing fun with the new smoke.

 

Yes you can blow some smoke but it won't be very much compared to what some engines can toss out.

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Also an easy way to get you close on the screw location is to take loose the oval shaped cover on the front of the timing gear cover and then rotate the engine over until the dowel pin is at 12 o'clock then when you pop off the triangle cover on the passengers side of the pump the screw should be just about right where you need it. Now this screw will turn HARD - this is because it's pressing against a leaf spring on the inside of the pump. Typically you can get about 1 full turn out of it max - if it happens to bottom out back it off about one flat on the allen wrench. Reason for this in some extreme cases the leaf spring can break while the engine is running because it needs to have some springy-ness to it. If the leaf spring breaks then the pump will be garage by the time the pieces of the spring get ran through the rotating assembly of the injection pump.

I sometimes found it was easier to drop the high idle solenoid off the side of the injection pump to gain a little more access to the triangle cover when turning them up.

 

I think they also make some bigger injectors for those engines as well. Search around on ebay.

 

only person that i know of that makes bigger injectors for the mechanical fords is DPS and from what ive heard they arent the best, even though 40 horses for 250 bucks aint bad. oh and if you go with a turbocharger with more than 20 psi plan on those 400+ dollar head studs.

 

ATS make 75 hp injectors as well if ne one is wondering, that wat i got

 

my89 7.3 has 3" straights from manifold to bed then turn int 6" curve tiped stacks and it sounds awesome

 

So around how much power should I expect if i only adjust the fuel pump? My pickup is the 6.9 liter IDI non turbo model.

 

I was always told about 15hp per ¼ turn of the screw, do not go too nuts though because it is easy to burn a non turbocharged motor up by overfueling it

 

egt guage is a must, these engines can get pretty hot expecially without a turbo with minor fuel adjustments. and as old as they are now there could be a good chance its already been turned up. you dont want to see over 1200 degrees egt.

 

Lesson: Dnt crank fuel up to high for more smoke

Fact: Cool smoke + pyro at 1350* = 1st melted down IDI for me