Cam Timing - Correct mm?

[bobswei]

I'm trying to find the correct timing for a '72 T engine 911/51 #6122456. My book says for engine type 2000 901/01 to 05 or 901/06 901/07 901/14 and so on with 4.2mm to 4.6mm. . Then there's a type 2000T with 901/03, 901/13 with 2.3 mm to 2.7 mm.
I'm thinking it should be 5.0 to 5.4mm.
I don't know the relation from type 2000 to 911/51? Is 5.2mm correct on the dial indicator for this engine?
Thanks, Bob

[faapgar]

Hi,2.3-2.7 mm at overlap.5.0-5.4 is for an S.Fred

[bobswei]

Yea, I rebuilt a 2.4S that had the 5.0 to 5.4mm.
Thanks for the quick answer.
Bob
I have another questions about cam and crank rotation but I will post later with pix.