check all your vacuum lines first before tearing into that manifold project. also try using lock tite on your carb spacer bolts and maybe a little permatex on the gaskets. mine leaked like crazy and after reading multiple threads on here this is what finally fixed it.
1985 CJ-7, 258 w/a weber carb and HEI, 2.5"lift w/32" tires, 1/2"shackle lift, Dana 300, T-5, AMC 20 w/one piece axels, and Dana 30, YJ tub swap w/CJ tailgate, chevy blower motor upgrade, homeade body sliders, flush mount LED taillights......much more to firstname.lastname@example.org
"And on the eigth day, Man created BEER!"