Best KT88's for an Mc 2000 ? Any suggestions

The EH 6550 is a good choice.
Mac is not doing anything that any Auto Company has not done for the past 100 years.
You pay the piper when you want parts.

MAC logos.

I have a pair of VAC PA-160 mkII's, individual bias pots for each output valve. According to Kevin Hayes at VAC, matched is not necessary when valves are individually biased. I buy matched sets anyhow, it's an anal thing I guess.
If I'm not mistaken, the VAC kt-88's are from the same factory that Golden Dragons were produced in.

I just have to back up bobgates when he sings the praises of the Tesla (new improved) KT-88's! -also from Steve at Quest for Sound. They seriously bettered the 6550C Svetlanas in my Aronov 110w Monos powering Gallo Nucleus Reference Spkrs. More "air" , slightly clearer mids, and no slackards in the bass - formerly what I had heard was the province of the 6550C's.
-Thanks Steve, credit where credit is due.
Truman/Atlanta