Jim: I had that same horizontal discharge tube setup on my 40 Dells and yes, it probably adds another 20-30 HP on a 2,110. Maybe a tad more on your engine. IIRC, my kit came with a set of 34mm venturiis (chokes) which were downgraded to 32s by Dave at Blackline Racing for me - he also converted them back to stock discharge tubes. I had a slight, nagging bog as I transitioned to more throttle in the mid-range and managed to make it a bit better by doing all the wrong things (never suspecting the venturiis were wrong). Going down one size to the 32 was a vast improvement, so remember that if you have mid-range hesitation and can't easily cure it. Apart from that, they really produce power, especially on the mains. If I were tracking my car I would still have those discharge tubes in there.
I also have that same DeRale cooler on my 2,110 and it has been great. Not the most compact, but it is rugged, reasonably quiet when running the fan and holds me to 200-205F no matter what.
Glad you got that beast running and how well it's turned out. Lotta work but the endgame payoff is really something!