Aftermarket engine management systems...
I have a 1973 450 SL w/D Jetronic, it seems to me that the price for the OEM ECU or MPS for that matter, you could buy an aftermarket engine management system with a new manifold pressure sensor but utilizing all the other sensors and a programmable ECU. My question is has anyone on this board done this, and how hard was it?

Here a a couple of links to sites I found.......
www.bgsoflex.com/megasquirt.html
www.motec.com.au/products.htm
www.ptrsds.com/

Chaosmosis

1973
450SL
107.044 :