Hi, i installed my e7te heads backwards on my 5.0 after rebuilding the bottom end, theyre already torqued down and i dont want to take them off and swap them and reuse my already crushed headgaskets. the engine hasnt been fired on these headgaskets, they are felpro 10112's and im sure theyd be fine to reuse but perfer not to. as for the holes for the smog equiptment, these are now on the front. i plan to buy the thermactor plugs so i can bolt up my accessories and not have a massive exhaust leak, my real question may seem like a dumb one but my only real concern is the direction the spark plugs are facing. since now they will obviously be angled in the wrong direction, i just want to make sure there will be no clearance issues with the pistons and that i can still get the plug wires and headers on and put the engine back in without any problems. i can take the heads back off and do it right but if i will have no issues as is ill just put the smog plugs in and call it a day. thanks