[KingLT1]

Originally Posted by Snowblind

No offense but your combination sucks.
While a car was still strapped to a dyno, I swapped out a 87mm throttle body to a 95mm (both ported) and picked up 20 ponies on a H/C car. I'm a big fan of the 2" over the 1 7/8 and even though the smell sucks...dump the cats, if you're gonna pick the biggest cam on the shelf then give it the parts to make it work. Porting the MSD will help and getting head work done is ALWAYS money well spent.

You've mentioned that e85 is available so once you decide on how to move forward, definitely get the sensor and tune for it...it's like liquid crack for our motors.

It seems you know what you are doing tuner wise but I would take a slice of humble pie and ask EFX, Pray or GPI to take a peek at your tune just to double check, it seems like the cheapest remedy if you overlooked something. Their are plenty of other tuners out there but I would gravitate towards the guys who are on the fast list, for obvious reasons.
I know your question was the concern about the mid range and not the top number, but racers don't live at 3500 rpm so I wouldn't sweat it too much. Good luck homie.