"Michael" posted:

That's the key question. Until I hear evidence to
the contrary, I'm going to keep on believing that gravity feed
carbureted systems that have a reasonable (say 2 ft or better)
vertical distance between tank pickup and carb inlet are immune to all
this vapor lock stuff.

Believe whatever you like.

Rich S.
++++++++++++++++++++++++++++++++++++++++++++

Anecdotally speaking....

My GRAVITY fed RV3 has been totally immune to
vapor lock after logging more than 440 hours in it.
The vertical distance has remained less than 2 ft
for over 17 years.

P.S.
Not yet sure certain what can be believed.

P.P.S.
A greater 'fall' is certainly desirable.

YMMV.


Barnyard BOb --