tired of searching...

my car is summarized below... major upgrades are the cam, the headers and the torque converter. I stuck a hypercrap chip in and was none too impressed.... definately a difference and seems to affect tc lock up (adversely)

Let's estimate ouput at 250 (from the stock 190).

what can i output can be expected.... caviar-dream-champaigne-type-wishes...

 

What is it you're asking?

 

I think you're asking what kind of HP can you expect thru a custom chip? With the several I have done on the dyno, I have seen anywhere from 5 to 15extra horsepower at the wheels, depending on how bad the car was off before.

 

First, DIY Prom does not play the "guess my HP game". If you want to know how much power your engine makes, there is only one way, take it to a dyno. In fact, I encourage you to go to a dyno before you modify your eprom and then use the dyno as a place to do your tuning. Then you can see you gains.

I will agree with Kevin that the true amount of gain you will experience depends on how badly out of tune you are initially. As well, how many modifications you have made to the engien and how much time you spend on tuning. Also, the size of the engine is another factor.

I will assume that you have the stock MAF 165 ECM using the $32 calibration that came in 1986. I would concur with Kevin's guesstimate of you potential gain. I would guess maybe a bit more if you swapped over to the later $6E calibration, worked on your MAF tables and played with the spark curve.

The big gains from tuning is usually found in the spark and if your fueling is WAY OFF! As you are MAF (though the earlier one), the bulk of your gains are going to be on the spark side, which will be a challenge as the stock head engines (and 305s in general) can't handle much spark advance - thus your gains will not be as great as a larger displacement engine like a 350 or 383 that has lots of mods and using a basically stock SD $8D calibration.