i got a gsr head that i want to use on my b16 block. from what ive read the gsr head will up my compression, not lower it. i thought becuase it was for a bigger motor that it *should* lower the compression. ive heard the gsr head also flows better mid-range, but the b16 head flows better up top. im looking for some feedback on this setup. im in the process of getting the parts ordered to rebuild the head with oem parts w/ arp head studs. any feedback?