Tony, I think the best setup if you don't the deluxe gmc oil bath air breather/fill tube would be to tap into your air cleaner. A lot of air cleaners already have this outlet, and if you ever had blowby it would still end up being burned. There is a flame arrester included in most of these setups. The breather oil fill cap on the rocker cover is really prone to get gummed up, plus suck dust (marginal filtration) into your rockers. Just my two cents/ grin