How to make a V4 engine faster?

I have a 1991 ford ranger. The engine was rebuilt so it only has about 65,000 miles. I love the truck but when i floor it it seems like i'm driving like a grandma. The only "performance" thing on it is a cold air intake. What can i do to add HP and increase response time? I've cleaned out the throttle body intake and the mass air flow sensor and it helped a little bit it doesn't idle as hard now but i want speed! The fact the speedometer maxes out at 85 doesn't really help tho. Any suggestions?

First, it's an Inline 4 not a V, so that might be causing confusion when you try and research things.

But, back to your question… You have a 2.3 litre engine, that made a whole 88hp, when it was new! And that was almost 25 years ago… It was never fast. Now it's tired and even slower.

Suggestion… Find a cheap similar vehicle with the 3.0l V6. Doesn't matter if it's a rusty wreck or doesn't even run. You strip the engine and accessories out, get the engine rebuilt so it's running like a new one again, then transplant that into your trusty ole truck. That should give you 140-150 hp, still with a stock engine. You have all the parts you need from the donor vehicle.

Still won't be a dragster, but it will be a lot quicker than the tired old 4 cyl you have now.

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