Ya,because aluminum heads are better!!!..and if your buddys car did'nt pick up anything from switching to aluminum something is wrong..then again its a chevy...
nothing wrong with my buddy's chevelle...The amount of work he has done to those heads is insane, so it flows real good....honestly in my opinion only thing better about aluminum is they are new, so a better design and are light...other than that in my opinion theres not much..thats not to say i wouldnt buy them, because i will one day, but i see nothing wrong with irons either
