vacuum leak from carb to intake. need quadra-experts

[superwade57]

Hi guys I get everything put together on my 73 a couple weeks ago. Have had it out on some short fun runs... its a mild 355 eddy performer spread bore intake and quadrajet carb fresh reman. I was having trouble getting the high idle on the elec choke to work right. Some intermitent unreliable idle problems and an inconsistant fuel starvation/stammer at3-4500 rpm. Checked for vacuum leaks and sure enough carb base to intake 360* of leak that increased rpm when sprayed with ether. I snugged the mount bolts and it helped but still leaking in the front. I used the thick stock gasket for the carb application based on the stamped numbers. I've heard it can be tricky to seal a quad to a performer? Any sugestions?

Thanks a ton.