Looking forward to using an ls3 style intake manifold on 799 cathedral heads that will be milled around 0.020" but am unsure of the best quality adapters that won't cause fitment issues or leaks. Let me know if you have any info, thanks.

 

They're real easy to find if you do a Google search. $180

 

not what I'm asking....asking about what is quality

 

I believe that Cleetus McFarland used http://www.ictbillet.com/ for his Leroy corvette build when he put an LSA supercharger on his LS1 before he went twin turbos.