No way m8, your going to need put in as much time with the new CPU as you did with the old CPU.

The GTL's are different for a 45nm over a 65nm.

As for the "GAP" in GTL, only the Negatives have 40/45/50 so 0.5's, the Positives have 40/50/60 so 10's

You adjust the GTL going by your VTT (FSB Termination Voltage) into the proper Calculation (in a Sticky in this very section), it could end up nowhere near 40-45, I have seen peeps on +/-60 here