Here's a log from May 16

 

Ok, here's the final log with 5% more added to the MAF table above 5000hz.

The engine feels weird when it gets close to 5000 rpms....the power becomes "wavey" like it's surging or something.

Looking at the log, this thing is retarded. 14 degrees of timing at WOT I can't wait until this thing gets tuned in properly. Should make a pretty big difference IMO. Also my stock injectors are 91% IDC.

 

ya that log looks better, it should be safe, which is good better to be rich than lean as hell... You are in serious need of a real tune, hopefully justin can work on it now...

A couple of things to do in the time being, i would really look at buying/renting/borrowing a fuel pressure gauge and make sure you fuel pressure is good. also you should be looking into injectors too.

 

Injectors on a bone *** stock cam 6.0? What IDC's do stock 6.0s see normally? I'm having a hard time the heads are making that much of a difference. I contacted blackbear to see when they will be in my area for a live tune. My fuel pump was replaced with a brand new GM unit back in March I believe.

 

Here's what someone wrote on EFI live forum:


your strategy for combating kr and the lack of fuel is fine, for now. i'm assuming that you are using 93oct fuel, anything less is not adequate for the mods you posted. o2 values of less than .900mv is not good enough. since you do not have a w/b, it's ok if you just tune to .915mv using the nb o2 sensors, .920mv to or higher is probably too rich. wot tuning takes place on the last 1/3 of the entire load colums of the ve table, so 2.5% encrease is a good target. the maf table is way too high, instead, try 2% encrease from 8khz to the top. take the stock high oct. timing table and subtract 2* deg from .44gm/cyl to .120 or what ever the max is on your table and 3200 to max rpm colums. the last log that you posted seems that too much timing was removed. make a wot run with these settings, and report back. the other area that needs tuning with your mods is the low to midium load areas, which is indicative of the large positive ltfts, add 4% to the ve table in those areas, but do not touch the idle area, which is the 400 to 800rpm colums. i would not advise anyone who is in the beginning stages of learning to tune, to decrease the kr sensitivity tables. this forum will guide you in using the more sophisticated and accurate method of tuning, for now it's important that you get rid of kr. in the future, it's a good idea for you to get a w/b. the last subject i would like to mention is that the weight of a vehicle affects timing strategy, a heavier vehicle will require a little less timing than a lighter one,[ truck vs corvette]. if you could post your current tune i would be glad to review it. good luck either way.