Brand new 8 bolt GN1 heads, springs for roller cam. bought last year $1750
T&D roller rockers for 8 bolt GN1's $500
Arp head studs for GN1 8 bolt heads $80
Used BHJ balancer external with ring $400
Fast xfi, with caspers adaptor box, 3bar, internal logger, extention harness. Used but in new...