There is a whole community on various GM boards whose sole purpose is supporting folks burning their own prom chips. There are aftermarket companies making ZIF sockets and such, to make changing the proms easier. Tuning software, and equipment for burning proms is readily available on the market. For less than 300 bucks, you can do your own custom tunes for OBDI GM vehicles. (this is something I played with on my old Firebird..... there was a neat little feature in the tune from the factory, that was never implemented for production vehicles. Highway Mode. Simply turning this on, and tweaking a couple settings, got me 27MPG on the freeway.......)

I haven't see anything like that for the dodge crowd though. I haven't dug in to an OBDI dodge PCM to see if it is even a viable option..... (is the prom removable at all?) Of course, I don't have an OBDI dodge to tinker with either.....

The two wire 'chips' that are marketed on places like ebay, and such, that do the same things as their OBDII counterparts, are equally as useless. The PCM DOES learn what's up, and compensates accordingly. There is NO simple way to get the mileage/horsepower claims they are making with what is essentially a resistor....... It amazes me that they can advertise that stuff, and get away with it, when to anyone with a clue, (or, that is willing to do a bit of research.) they are obvious snake oil, and their claims are flat out Lies.

 

I was assuming the op was talking about somthing like the jetchips chip module...(which also does not work after 200 miles)

 

Yeah, a little clarification there would be good.

 

Interesting.

 

We bought a used '96 block, a Scat crank, and Icon forged pistons for the bottom of my stroker. The stock rods are forged steel and as far as we were concerned tougher than some of the after market ones. We used them. The crank and pistons were purchased on sale. The block was machined locally and my son notched and assembled block and was taken back for balancing. We had checked the stock cam and re-installed it. Total cost of bottom end was around $2000. Hell, the old block, including rods was a monster cost of ...$100 and there are thousands out there.
That also applies to the stock heads. Find some cheapies at junk yard that aren't cracked and take them to the machine shop and have some 2:02 and 162 valves put in them. Take them home and go to work with your drommel tool on intake and exhaust sides to smooth the flow and match them up to a set of new gaskets before machine shop. I could have bought a barrel intake for $25 bucks. Go to work on that puppy too with your drommel.

 

What I am getting at is you can put together a stroker that in the end will give you much more power for the same cost as adding a ton of parts to your 5.9 and being disappointed.
B&G is the only game in town for OBD1 Mopars. Best piggy back system out there is Perfect Power's SMT6 or above. Both work and will cost you. I have the B&G tune on mine ...it was $650. If you knew what they have to go through to re-tune the OBD1..well the price is reasonable.