arp rod bolts are a required fitment ... or the rods will come apart.
standard head gasket, standard cam, shot peened rods, balanced bottom end , ap organic clutch and mk5 clutch pedal,cossie t3 turbo, skimmed standad pistons, small mods to mfi, front mount intercooler and 22psi is available all day long... did many track days at that spec and was totally reliable mark shead set it up and i recon it would have done another 4 psi easily was estimated to be 230 bhp ish.. upset a few cossies with it