Question...what is the normal running temp for a 1972 340

1968FormulaS340 said
We haven't mentioned tuning. Something like being lean on the top end (65-70 mph with 3.91 gears should have the RPMs up a bit) could cause excessive heat.

Very good point,, late timing, or lean would create more heat,, so check your timing,, and pull a coupla plugs, and read them..

hope it helps.