I'm lucky to have a friend that does patterns in a small aluminum foundry and he's going to make me a set of aluminum fiined covers using a damaged old Offy cover as the pattern for the mold. I'm wondering if it would be advantagious to have him cast in some dripper bumps or maybe put them in later with some aluminum solder I have. Worth the effort? My 409 will be in a 34 Ford street rod - not raced, but used on pretty long trips as well as Saturday night cruis'n.