NEW M-6049-Z304P HEADS and M-6009-Z347 short block
Reading about the new Z 304 M-6049-Z304P head that are CNC ported and it has some great flow # over 300 intake and 220 exhaust at 500. lift. I was trying to make my final decision on my short block combo. What do you guys think about those heads on the new M-6009-Z347 Short block. The Z347 is rated at 450 hp with the non ported Z heads what do you think the addition flow# will do to those numbers with a custom cam.