The measurements on the adaptor plates for teh Weber are as follows:
2 alloy plates: one plate to manifold and one plate to carb dimensions:
1/3" thick 4" long 2 2/3" wide
the first plate bolts to the manifold with 4 3/4" long hex bolts with 1/4" dia shafts
the studs for the carb that will mount into the second plate are also 1/4" dia shafts and 1 1/2" long
While you have the carb off, shave the intake manifold out to match the carb. That little bridge across the opening does ntohing but hamper fuel flow anyway. I took it out with a router and a file.
Neal the Zukiguy
"If it is '...a Jeep thing...' I hope it isn't contagious"