[mixermike]

i just went through this on my 57. i have a big block with a big cam and low vacuum.i have a reserve vacuum cannister between the brakes and the motor with only one vacuum port off the carbs.i just put a plastic tee in the line and ran it to my pcv.some people said it would not work and some said it would.it works great for me,i think the key is having the reserve cannister.if it does not work for you your only out a couple bucks for the tee and hose.easier than drilling another hole