I was jus wandering when u change the heads do u need a new manifold or will the stock one work.I have an 85 vette so i was wandering this if u run different head what kind u use? i like the trick flow 23 degree heads
jus wandering jay :crazy:

 

AFR 190s are the best, and no you dont need a new manifold

 

I agree with vader, though I have heard that the later version of the twisted wedge is good. Also, if you want to take advantage of flow improvement in a new head, you will want a new manifold. The miniram and superram seem to be the most common. I have seen a site that sells LT1 intake conversions for L98s fairly cheap as well.