I have a vacuum to the power booster brake but of course
its the last thing I put on and first check was the EGR valve.
Put on a vent cover and plug for carb. Instant fix.
I did not put a hose clamp around the rubber hose there at carb.
Could it have been leaking there ??

~ BD.
"You won't find me in an old folks home" Pioneer Florida Cracker
1958 Apache Stepside
1958 Apache 1/2 ton Panel
1959 Apache 1/2 ton Panel