Best aftermarket intake/carb for 340 V8 '67 CUDA?

I agree with Loco 100%.
All the above mentioned intakes are very very good with HP levels to small in there differences to really matter. Also, not mentioned, now that I think for a second is the Weiand Action plus which is extremely similar to the Stealth at a cost savings of around $50 or so. Not a dang thing wrong with that intake and I myself would prefurr it over the Edelbrock Performer.

Are there any mods to the engine?