need more power for my 280se

its quick i mean its seen hit 140 but, it needs more power, and ideas, or anyone that can help me do it im new here so thanks ahead of time

I assume it’s a w126 (???) say 1981ish (???)

If yes. No. Assuming your engine is in good working order, she’s not going to be the fastest thing pulling around 4500 pounds. Don’t get me wrong, the M110 engine is outstanding, real bullet proof; but that’s why MB started putting V8s in the bay.

Vintage Programs (http://boykinracing.us/index4.html)

buy a differnent engine