[olddog]

Ok I down loaded the .pdf file for the Tweecer manual and read it a couple times. It leads me to believe that you can down load all the tables from an EEC IV, but stopped short of stating that you can transfer this file into the Tweecer as one of the 4 selectable tunes, allowing you to start with a tune identical to the factory settings. If you can do that, you could start identical to where you are at. Is this doable?

I'm thinking the first thing I should do, is correct all the modification that were done to my engine. Put in the right CID, the enjector size, and mass flow meter size.

From my understanding they likely set my MAF up with a range larger than my engine needs. Since the factory used 19 lb/hr and I have 36 lb/hr injectors and I'm guessing the factory used about a 650 cfm meter, the math comes out to 36/19 * 650 = 1230 cfm. I think I was either told by MassFlow or read it in the literature that it is 1200 cfm. That is likely too big for 347 cid. I'd think 700 cfm would be enough. Is only using a little over 1/2 the range of my MAF going to hurt the resolution enough to matter?