...and, with respect to KISS...the old ways usually are.
Mine came equipped as an original S/C would be...straight from Provo. The puke tank was equipped with a road draft tube, which allowed venting for the engine vapors down at roadside. This is the reason old roads always had that dark stain down the middle of the lane...road draft tubes were used on everything...until pcvs came along.
Normally, the road draft venting was used for engines. Racing rules required that fluids never hit the pavement, so puke tanks were required. In the Cobras, the KISS approach was to use a single tank, so the rear, trans and engine are all vented into that old lawn mower gas tank on the firewall. A tube at the upper passenger side fitting allows the vapors from all three (usually very little from the trans and rear...probably pretty mucky in those several feet of uphill tubing) get sucked down through the road draft tube which has its end out in the airflow. What fluid is left (a slight amount of engine
oil and a wee bit of whatever trans/rear vapors don't get sucked out) drop back into the
oil pan. I change the
oil/filter every 2500 or so.
Complicated? Naw...about as simple as it gets. I don't have a minor motor or a right foot (on the road or track) and it has done its job perfectly well for the past seven years, just as it did for the past 40 years on Dick Smith's old POS.
I love the fact that I leave a bit of a road tatoo on the pavement I pass over...hope the hell it stains the Priusi which follow.
To each his own...