depends psi.. i would say a good built 4.2 could give u 230-260h.p depending on compression, cam and what not..
maybe 300-320 at 12 psi? maybe more... just a rough estimate.. idk how much the m112 makes at 9 or more psi i never seen any one on a v6 yet.. and idk wheres tomzac...
maybe 300-320 at 12 psi? maybe more... just a rough estimate.. idk how much the m112 makes at 9 or more psi i never seen any one on a v6 yet.. and idk wheres tomzac...