I had been running a Holley 950 HP 4150 carb that was converted to E85, but was never happy with the cold starts and the idle characteristics with it. A week or two ago I picked up a new Holley Ultra HP 950 E85. It starts great, idles great, and is really responsive part throttle, but has a bog at full throttle. The accelerator pumps are adjusted correctly and it is like it came out of the box. It seems like it need more squirter when the secondaries open. I tried a few different pump cams, but have not got it right yet. Any ideas on where to start and what to look for?

The carb comes with 30 cc accelorator pump on the primaries and 50 cc on the secondaries, 45 squirter on the primaries and 50 squirter on the secondaries and 96 primaries and 106 secondaries on the jets.