Peyton Racing now carries all 660 Pro products! What we have listed here is the 660 Pro Oil Evac System. With this evac system, you no longer need a catch can for your jr dragster! Like most, this evac is bolted right to the head of your motor and runs excess oil right back into your block, releasing crank case pressure. With 660 Pro’s special design you no longer have to worry about the notorious “blow by” issue of oil leaking out of the air filter. NO BLOW BY!