Holy shit I just figured out how to use the compare tool on turner pro. holy shit its like I know halfway whats going on how, I can see the differances in tunes between 2 or more.bins on any table...I can see it so much more clearly now, I was honestly about to give up. and go carb.
1986 Pontiac Bonneville 305/2004r rebuilt and 3.42 rear gears.
1999 9C3 Lumina L67 .4T65E-hd
2004 E250 5.4r75w dana 60 rear with 3.73 gears
Going carb would be a waste and a step backwards. If you can tune a carb, you can tune with EFI.
The breaking up at high speed/RPM you speak of is because WOT is open loop, and I would guess your running lean. Alter your VE tables, and watch your wide band in these ranges. No factory chip (305/350/whatever) is going to *work* for you, some might have a few attributes to fit a certain situation better at times than others. I wouldnt look for pointers by reading other chips. If your engine isnt knocking or pinging (read knock counts too) then you dont have too much timing. A lot of timing is not neccessarily good, but most often extra timing will run better than too little.
Get a timing curve that doesnt knock or ping, and correct your fueling from there. Then you can fine tune the timing and fueling until you get something you really like.
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