I went with Trick Flow and am pretty happy with it, other than they sent the wrong rocker arm studs.
Depending on what you're planning on doing with it, you can come out a little ahead buying parts individually and using a track heat intake and a stage 2 cam (instead of the street heat and stage 1 those kits normally include)
the twisted wedge shouldn't have any issues with hitting factory pistons in an 89 to my knowledge
Depending on what you're planning on doing with it, you can come out a little ahead buying parts individually and using a track heat intake and a stage 2 cam (instead of the street heat and stage 1 those kits normally include)
the twisted wedge shouldn't have any issues with hitting factory pistons in an 89 to my knowledge