I seem to be leaking oil at the front seal (timing cover) on my '73 K-5 (350/350). The timing cover and seal are new (edelbrock) as is the balancer. I oiled the seal before install. I'm wondering if the balancer is not installed all the way. I used an installer and pushed the balancer in as far as I felt comfortable going with it. The gap between the balancer and the timing cover is approximately 3/8". I'm embarassed about posting such a basic question but it's the only thing I can think of that might be causing the leak.