What efi system is best for a 4.5 pfi cadillac engine7

[S.O.B.B.]

Finally had some time to do more than read logs and make changes.made a blm history table.that works great.not done but running much better.is there any correction table like this for spark advance.

[dave w]

Finally had some time to do more than read logs and make changes.made a blm history table.that works great.not done but running much better.is there any correction table like this for spark advance.

Maybe you made Fuel Table (VE Table) changes that helped improve the BLM's in the data log so the engine is running better?

dave w

[S.O.B.B.]

Unable to find more definitive info on injector bias I burned 5 chips each with only injector bias changed.settings were .35/.37/.38/.40/.42 ...went fo a 2hr drive.I started with lowest .35.drove till hot.unhooked ecm harness to clear memory. Plugged back in waited till closed loop and started to log.right away I notice the stumble when burping throttle from idle or just stepping on it harder from any speed.I logged about 15 min to see if any improvement from learning.no change.so I went right to the highest one .42..unhooked ecm to clear memory and change chip.repeat of the lowest.same stumble in same area. So I repeated this again with about the middle chip at .38..no more stumble.ve needs adjustment no matter which chip.but it seems pretty responsive.I also got more knocks though.so I'll keep making adjustments to see if I can get it better in ve and sa.i drove it a little hard and it used and lot less fuel than it had been so that's a plus.a question about ve tables in xdf $42-1227747-V5.9.3 if I try to adjust my ve table on the graph it drops the point I try to adjust.I have adder table at 2.75 all rows.ve 1 has adder added accept the 2.75.if I type the numbers in the boxes then it works but it won't let me change on the graph.am i doing something wrong with this xdf.it works fine on the regular $42 xdf.any help is greatly appreciated. Thanks

[S.O.B.B.]

ARPC 91 C-K Truck 5.0TBI 5 speed.bin

[S.O.B.B.]

ARPC BB 4TH.xdl

[S.O.B.B.]

I posted my bin and a short log.if I have something set wrong or see something that shouldn't be please advise me.I'm getting a better understanding of how it all works but I'm still pretty green to tuning.thanks in advance to anyone taking the time to help.

[S.O.B.B.]

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[S.O.B.B.]

Update on a dodge throttle body.did some playing on the mill at work.still unsure this will work but it's looking like it will with a bit more work.bit of a tight fit.have to epoxy one vac port shut.also not much room at edge for air cleaner.hopefully I'll find something that will work.