P337 vs P377 Riley

[KHebard]

I'm a mooney M20K driver who needs more space, wants 2 engines and pressurization.

After researching this site (great by the way!) and anything else I can read on 337's .

I'm now looking to aquire a P337 1976 or newer with de-ice, mid to low time enigines (I live in SW Michigan)

The questions are:

1. Value ( speed and maintenance) of a Riley conversion. In the market place it appears on ave. a 40 - 60 k upcharge over same year and equipped P337. I don't mind spending the additional $$ if it saves in maint. and there is a performance advantage.

2. Intercoolers - needed? On my little mooney it helps performance at altitudes.

Thank you in advance for your input,
Ken