Thanks for the interest in my problem.Johnrr,what problems did you have with the tail pipes?The first thing I did was read the instructions and the only linkage modifications they mention are the throttle rod and bellcrank,although they don't look like they will hit.dmerc,the car has never been hit,tti's specs for engine placement are 5.25"above the K frame and off set 2.5"to the right measured from crank centerline.Mine is the same highth but 2.25 offset.I don"t think .25"will make enough difference.