How much timing on a racing gen 3

TT5.9mag said

Nice can you tell us how the runs differed between the different timing numbers? Like how sensitive was the engine to timing adjustment.

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It seems to be more sensitive to the DA than the timing adjustment.
@ 30 degrees 6.64 102mph DA 3450
@ 28 Degrees 6.57 104mph DA 3350
@ 26 degrees 6.55 105 mph DA 3300
Had a 2nd pass @ 26 degrees where it spun and had a bad 60 Ft. but still ran a 6.57 105mph DA 2900. Prob. would have been around 6.52 if it hooked.
Last week it did have a 6.55 pass with 30 degrees of timing but the DA was down to 2850.
60 Ft. is consistent around 1.46 I think it has more in it if I tweak fuel tuning some more and maybe try 24 and 25 degrees timing. It used to 60 ft. around 1.42 on carburetor years ago.