I just received this truck from one of my moms friends and was wondering if anyone could help me out with some advice. First off I have been told that the truck has a holly performance FI system(holly is stamped on top of the throttle body inside the air cleaner), a big crane cam, comp roller rockers, gibson headers, dumped exhaust, a re-geared rear end, and an after market computer, the truck sounds amazing at idle, but the trans slips and seems to have a lot of trouble shifting, for example while I am driving the truck will seem to act like it has no kick down when I try to accelerate while in motion or it will only seem to shift if I let my foot completely off the gas pedal and then put it back on. and it has been a while since I drove a car with an automatic out side of this one and if I let off the gas at any speed shouldn’t the rpms return to 0? because they don’t. I have already changed the screen and filter, gasket, and pan using ATF+3 but other than being able to put the truck in gear it has not helped. Also I was driving down the road last night and all of my gauges died except my spedo. All 5 read nothing but the light still work. If anyone can help I would be extremely thankful because I need a truck

Holly is stamped on my throttle-body as well, and I have full certiantly that mine was not modified.

When I am in gear and let my foot off the gas, my RPM's return to about 1,000. At idle, with the tranmission in Park, my RPM's are around 750.

As far as the gauges not working, when you turn the ignition ON, do lights (such as the check engine, brake, airbag, etc) lights turn on for a second or two? (The lights at the bottom of the cluster, not to be confused with the lights that illuminate when you turn the headlights on).
Post back.

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Current ride: Belleville 220 DES ST - leather, reinforced front end, tan color. Runs on 'alternative fuel'
1996 Dodge Dakota
1986 Honda Civic CRX

No there are no lights period. and that is interesting about the holly thing

Well, I would first check all the fuses. Pay special attention to fuse 14 (15A), and fuse 6 (20A).
If nothing suffices there, post back.

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Current ride: Belleville 220 DES ST - leather, reinforced front end, tan color. Runs on 'alternative fuel'
1996 Dodge Dakota
1986 Honda Civic CRX

still nothing but 14 did have a 2 amp in it

i take that back 14 has no pluges in it i was looking at 15

OK, I don't know exactly what they changed between '91 and '96, but on mine,

Fuse 1 30A
Fuse 2 - Circuit Breaker, 30A
Fuse 3 15A
Fuse 4 5A
Fuse 5 20A
Fuse 6 20A
Fuse 7 10A
Fuse 8 20A
Fuse 9 15A
Fuse 10 20A
Fuse 11 20A
Fuse 12 10A
Fuse 13 4A
Fuse 14 15A
Fuse 15 EMPTY
Fuse 16 5A
Fuse 17 EMPTY
Fuse 18 EMPTY
Fuse 19 EMPTY
Fuse 20 25A

Check for voltage AT fuse 14 and 16.

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Current ride: Belleville 220 DES ST - leather, reinforced front end, tan color. Runs on 'alternative fuel'
1996 Dodge Dakota
1986 Honda Civic CRX

Well i have a new problem, the truck started knocking last week wile my dad was driving it and stalling and such. well he got it home i changed the oil and shocks went to take it out of the drive way and boom i cant turn it over or aney thing so i need to know, i have been told it is just the timing chain, but i am not sure aneyone got advice?

Can't turn it over as in it will turn over (starter works) but it won't go into a self-contained run, OR can't turn over as in the starter won't even turn it over (if so, does the starter try to engage).

If the starter won't turn it over (or the starter doesn't engage), that problem is not related to the timing chain.
If the starter engages the motor, but it won't go into a self-contained run, than perhaps we have something. I don't know what all the 1991 does or does not have, but a bad crankshaft or camshaft position sensors [sometimes called hall-effect sensor] can cause problems.

Of course, you need to get the basics out of the way too: make sure its getting fuel and spark.

__________________
Current ride: Belleville 220 DES ST - leather, reinforced front end, tan color. Runs on 'alternative fuel'
1996 Dodge Dakota
1986 Honda Civic CRX

no the starter clicks but the motor does not move also i found out that the engine is out of a 93 because the truck came from the factory with a v6