What headers do you have on there and what size are the primaries 1 5/8 or 1 3/4 and are your towers notched for that 351 based motor
I installed the AJE front end and the shock towers are cut out. The headers started as Hookers for a 351 in a fox. I had to move a couple tubes on the drivers side. They have a 2" primary with a 3.5" collector.
With that set up & at least a 28in tire,if you are going to spin that eng. near 8000rpm,LOW 9s should be no problem.GOOD LUCK