fiberglass is a bad idea. fiberglass' bond to steel is in no way a permanent deal.... may last for years before it starts to lift...may last for weeks....but regardless it will eventually lift.
there are several ways to go about "smoothing" the firewall....
filling the holes and doing typical bodywork would be an option. so would reskinning the entire firewall... there seem to be a few companies that make panels to either weld in or "bond" on like steve did on penny(i think there are some pics in the first penny build thread)
|