helped a friend put a pair of flowtech standard (not the afterburners anyways) on his 85 and it went pretty easy. Be sure to take the spark plugs out though and we had totake the dip stick out too. I put some Hooker Comps on my truck 86 with a 400 from a 76 and the only thing is that the auto shifter luinkage rubs the headers but easy to bend back