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If I was you, I would ensure your saddle height (BB to top of saddle) and your saddle setback are identical between the two bikes.
Specifically the distance between saddle nose to centre of BB horizontal (if using the same saddle).
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One thing to bear in mind is that the cranks on the track bike might be shorter, so you'll have to take that into account when you measure from the BB.
If the track cranks are 165 and road bike are 170 (for example), the road bike's saddle would need to be 5mm lower to BB and 5mm further forward.
edscoble
TurtleRecall
@Hovis
Not a professional opinion but my 2c:
Your track bike likely has a steeper seat angle as well as numerous other differences from a typical road geometry. So its difficult to compare geometries from measurements like top tube lengths etc. Best course of action is to use the "stack" and "reach" measurements.
If I was you, I would ensure your saddle height (BB to top of saddle) and your saddle setback are identical between the two bikes. Then measure the distance from the tip of your saddle to your handlebars. (where you measure to on your handlebars you can choose depending on where you spend most of your time riding, so in my case it would be on the hoods, but usually fitters measure to the centreline of the stem to handlebar clamp point) You are happy on the track bike, so whatever you measure there, take the difference to the road bike and make up for it with a stem that replicates it. You can get stems of a wide variety of lengths, but 100mm to 130mm tends to be the norm.
If your track bike has bullhorns, I would set up the hoods of your road bars to have the same drop and reach as the part of your bullhorns you spend most of your time on, which I'm guessing is the curved parts at the front
Hope that makes sense.