old school tunnel ram and carbs question

[rat tuned]

we have built 2 tunnel ram street cars. car 1 was a 68 firebird with a 400" chevy 10.8-1 comp with AFR heads and a comp 294S sam. 10" converter and 3.73 gears. used a weiand street ram with 2 rebuilt 450 mechanical holleys. all we did was drop the power valves lower because of a lack of vacuum because of cam. this car ran awesome and was wicked responsive even with the automatic. never got it to the track because a professional football plater saw it in front of the garage and bought it. car was an absolute blast the short time we had it.
second car was a 68 camaro with a 9-1 454 and LS-6 mechanical cam. 4-speed and 3.73 gears. same weiand street tunnel ram but 600 vacuum carbs. car was pretty mismatched but ran real good for what it was. we ended putting screws in the secondary linkage and it seemed to help but was NOT the way to do this. car looked tough and was a blast to drive. mike