Holley 4150 650 DP with Auto Trans????

Now I'm frustrated!!!
I just took my 600 CFM Holley back to Summit and replaced it with a 4150 650 CFM DP (Based on running 125 shot of NOS for more fuel and recommendation from the
'good folk' on this site). So I get home and read "due to no kickdown, this should not be used on ford's with an automatic trans". OK, the tech @ summit told me I should be OK, because your secondaries are mechanical which will promote better fuel response running NOS, versus vacuum. So I went with the 4150 due to being more agressive.

Note: I don't plan to drive cross country...just here and there, local car shows, and to Norwalk to play every once in a while (only 20 min. from track)

So what do I do???

I was going to pay the 20 extra bucks for the 670 street avenger, but I won't be running the stock trans.

So my question is, will the 4150 mechanical be ok? Or should I cart my butt 55 miles back to summit and get the 670 street avenger?

OH by the way, I have a 70 Torino GT with a c4 and a TCI shift kit in it now. Considering the carb does not phisically have a kickdown stud, what should I do?????
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Run it, you'll be fine. The carb isn't very big for the engine.. You didn't say the size, but you'll be ok for the intended usage.

650 double pumper mech secondary ford kickdown
Holley 0-82651 - Holley Model 4150 HP Carburetors - summitracing.com

You could install a lokar kick down cable instead of using the factory Linkage.

thanks bud! i already ordered the lokar kickdown kit for a C4.