What pump cams are on ot? Should have a pink in the front and brown or yellow out back. I would try dumping the iab to a 055-058. This will richen The idle circuit a bit and see if the bog gets better. Also can try to put an 050 squirter up front.

Also with e85 how much initial timing are you running? I have seen some cars with too low initial timing not launch.

Also be sure to have the car warm. I run it at 170 min when staging.