340/360 intake choice for high 11s

You will be happier with one of the Edelbrock dual plane intakes. I've also found the Weiand Stealth to be pretty good. It was at least a tenth or so slower than my Holley Strip Dominator on my race only car, but I have more gear, converter and cam duration than you should ever consider for the street, plus my engine barely ever goes under 5,000 rpm after I launch. Taking the time to fine-tune the accellerator pump squirters, pump cams, jets and power valve can get you even better performance (and manners) both on the street and at the track.