I think after after really digging on the suspension of what I have on there, it is too much. Although, how tall are your springs. Mine are 12" and a lot of people were saying 14-150's.
Here is a pic of the lift bars that I use.
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-Darren
03 Cobra Vert: Whipple, Lt's, H-pipe, SRA, 325 MT Dr's, more bolt-on's - Weekend Beater
88 Mustang Coupe: Gutted - Project