backfire dents hood ????

Could this b the problem?I turned key on fuel pump came on ,i noticed the shrader valve was leaking,key off fuel press went to 0 real fast,i replaced valve now it holds press at 37psi also my oil filled press gage has cracks on face but not leaking oil.could the backfire haved cracked the fuel press gage face,i know its a strech???
 
Top