Not sure why the 55 IAB. The .028 IFR is pretty close but that IAB makes the idle dead rich.
When you closed the MAB from 34 to 28 you delayed the boosters coming on, and you will be even fatter at WOT. When you delay the booster, you run out of T slot and you put a hole in the fuel curve that is hard to fill with pump shot.
If you are driving on the street, I suggest using power valves. You can drop the primary main jet WAY down to clean up cruise A/F ratio, and use the power valve channel restriction to tune for WOT on the primary side. I’d expect at least an 8.5 PV to be about right, but if you have enough gear to get the RPM up, or you can pull more than 12 inches of vacuum at idle, you can go up to a 10.5.
You should have T slot restricters of about .072-.078.
An 82 jet is on the big side for a TR with two 750’s.
EDIT: I forgot to mention of you are using billet metering blocks, you need to fix the emulsion. I haven’t seen a single billet metering block be correct out of the box.
For a TR you can use .026 holes in the top and third hole and block the second and fourth holes. If you have 5 holes, block 2,4 and 5 from the top. I don’t go over .028 on emulsion for TR’s. At least to start.
