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any 440 takes premium gas.
8 btdc
These has 4 different marks
replace the chain and gears
I usually run them at .035.
8-10 deg. before top dead center
no it wont there is a little difference in size
440 + 440 + 440 + 440 + 440 + 440 = 2,640
Most of these older Mopars like to run at 10 BTDC. Unplug the vaccum line to the distributor, mark the harmonic balancer with a little white paint on the 10 BTDC mark and hook up your light; loosen the distributor, move the distributor a little at a time. I hope this helps a little.
440
100% of 440= 100% * 440= 1 * 440= 440
possible need carb rebuild, or a flat cam lobe . Could be timing or bad timing chain.