Thinking of switching intakes

Hmm I don't know, but with heads opened up that much I think the Holley Systemax II will benefit U better. I personally cannot see that much improvement or gain with the Trickflow track heat over your ported GT40

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Black SN95
TFS heads, Holley intake, AFM B-2 cam,
13.8 @105mph NA
13.1 @112mph NOS on Wet track, running on NOS setting on NA runs (pig rich and 8 deg timing, CLOGGED CATS)
[b]12.9 @110mph best ET