hey guys. i know its been post and repost but still cant have the right and clear answer.... I just received my new billet 6768 for my setup and im not sure if i picked the right cover.. i got the SP cover and i know most of you guys run the H cover...

want to know what is the difference (spool, hp etc...) and wich one would be the best for my setup....

quickly i have a 81.5 b18b with a mild port type r head, victor x intake and made 587whp@ 26psi with a basic gt3582 setup... the car run 10.33@ 140 on a icy day (o celcius)......... im gonna add those skunk 2 pro 1 cams and a 76mm tb and a tottaly new turbo setup..

thk to evrybody that that will help me

 

any suggestion

 

from our workings with them there has been a 20-30hpo difference on some of our cars weve done, the S cover fits on quite a few more places than the H, I have the H on my car and its in the way after I switched to a new manifold.

I wouldnt sweat it one bit. the 67mm in the same cover form years before could do plenty of power and Im sure that you can do the same with a newer style 67