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I have a 91 Bronco, recently moving out of CA and into Oregon. Already have all of the CA smog/emissions stripped off but was wondering the easiest path to a little more horsepower. Not looking to go off road a ton, but would like to get towards 275 hp if possible without a new motor.
Idea's? Everything stock from 91, just no more smog on it.

Better fuel injection system? Chip controlled carburetor and new intake?

Super Moderator
23,886 Posts
Yo Brumitchell,
One option is Holley® Sniper EFI,
Sniper EFI - Holley Performance Products

Holley® 502 Pro-Jection® 2D
Installation Instructions; "... Complete stand-alone system which converts a carbureted engine to fuel injection; 670 CFM for GM, Chrysler, Ford, AMC Small/Big Block engines up to 275HP..." 4 MB pdf @ Wayback Machine

Other members here can provide info.

Here is the 1990 F Series/Bronco Pre-Delivery Shop & Electrical & Vacuum Troubleshooting Manual (EVTM), Partial by member Kingfish999 in Google Drive (similar to your 91) @ 1990 Ford Truck service manuals - Google Drive
Slow scrolling for my slow Comcast Highest Cost Blast Internet..
Find page # of item desired in contents, then flip screen flip down like spinning a bearing then stopping periodically to see what page you are on.
Suggest you download the docs for faster scrolling and to use the page index.

For any questions, or to chat about it's planned build, it's better to post each seperately in Noobie section. This will get more attention and you can build up your post count to get into other sections such as Bronco and Ford Parts/Accessories (75 posts required to view).

To save you time and for better responses, please fill out your Signature with location, year, engine size, transmission type, transfer case type (manual or electric shift), locking hub type (automatic or manual) info & major mods such as a Lift, etc. .
From the navigation, near the upper right-hand corner, click on your avatar and then select “Account Settings” from the drop down menu.

From your “Account Settings” page you will then see more navigation option of the left side. Select “Signature”.

Now you can simply enter your signature information in the text editor and click save.

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Free registration for some wiring diagrams (86 through 96) and Technical Service Bulletins, (80 through 96), same as by Ford @ BBB Industries- Premium Alternators, Starters, Power Steering Products and Turbochargers | TSB's & Wiring Diagrams

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aka: kemicalburns
7,708 Posts
what part of oregon you moving too?
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