Congratulations are in order, I just hit 250K miles today on my 92 RS Teg, and still runs strong and doesn't smoke or use oil. Maybe I will give my teg its first rebuild when I reach 300K. I think I will then go for some b16 pistons to up the compression and some stage 2 cams and valvesprings with new rod and head bolts and balanced rotating assembly.
I drive my teg pretty hard, revving to around 6k on a daily basis. I love the expression of friends (who aren't familiar with these incredible b18 engines) when it hits around 4k and the intake roars and the rpms jump to 6k quickly. They can't believe this old dog still runs so strong.
They only things I have done is add a CAI, header, resonated test pipe (live in FL, no emissions), 2" exhaust, complete tune up, all new motor mounts, with Nuespeed Sports and KYB GR2's, aluminum 15" rims and 205/50/15's wrapped with 2 Sumitomo's and 2 Kumos.
Sorry to ramble, just happy to have this car, and I am financially challenged so I don't have much else.