Posted 11/23/2013 17:26 (#3464306 - in reply to #3464072) Subject: RE: 1970 IH Loadstar 1600
wis south border
A 304 has a 2 barrel carb. A 345 will have a 4 barrel. The 392 will have a three bolt flange on the outlet of the manifold instead of two bolt like the smaller ones. 392 might also have a rev limiter by a vacuum line to the distributor.