New to motorhome 1996 containing an E350 chasis with a 7.5 v8. upon driving it home it had slight backfiring issues along with power issues. Found the air filter housing to be busted missing the upper part probably from inexperienced removal try. there was a small diameter hose maybe 3/8 or 1/4 not connected and appeared to have been connected to the upper plastic part of the air filter housing. Would or could this be causing the issues described? I have tried to locate a used housing as ford says obsolete. Junk yard part search didnt turn one up! Does anyone know where I may find a used Air filter housing? Thanks in advance for any and all help or suggestions!