Mopar guys, I need help tuning a 340.

---------------
I agree totally on switching to
a conventional, either stock or
aftermarket 180 degree intake
and on the phenolic spacer too.
Just be sure to use a proper,
4-hole spacer, as opposed to one
of the more common open ones.
or you will more or less defeat
and undo the purpose of using a
180 degree intake. Indecently the
engine can uses a slightly larger
carb with a 4-hole spacer too.
I'm not a fan of the newer Holley
so-called "Street Avenger" type
carbs, If you want a Holley, I'd go
with one of earlier Holley 'standards'
like the tried and true List-1950 600
cfm or List-3310 780 cfm vacuum
secondary carbs - or if you can find
a good core to rebuild, a 735 cfm
vacuum secondary carb as used on
some late '60's hi-per big block Fords
works really good. Any of these Holley
carbs though will need some tuning
and playing with jets and power valves
to get them to work properly.

Mart3406
===========