I rebuilt a Holley 1920 one barrel carb and installed it on my 225/6 it starts and idles just fine until I put my new air cleaner on then it starts to idle rough and eventually stalls what did I do wrong or is there a adjustment that needs done ?
Also I replaced the brake lines, wheel cylinders, rotors , calipers, pads and shoes , master cylinder the rubber lines to the calipers and bled the brakes 4 times and have good pedal but when I start the truck up and push on the brakes the pedal goes to the floor to the point that the pedal won't come back enough to hit the brake light switch.
I even replaced the check valve on the brake booster and new hose.
could it be the brake booster and if so how can I check to be sure ?
the brakes are on a 1985 Dodge D-150 short bed w/6. chassis .

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I am building a Rat Rod out of a 1959 Dodge Stepside Pickup that is mounted on a 1985 Dodge pickup chassis running a 225 slant 6.My1st car was a 1948 Plymouth coupe and still have it after 45 yrs. Mopar or No Car