I have recently finished dropping in a 350 in my 78 Regal. Last night I put headers on her and discovered that the driver's side one touches the small metal line running with the frame from front to back. This probably wouldn't happen if the line was actually flush against the frame. It sticks out a little as it begins to leave the engine bay and head back. Is this the brake line and if so, how much clearance must there be in order to not boil the brake fluid with the header heat? Also, has anyone else put headers on only to find that the oil filter doesn't fit now? What filter can you use instead?