I was figuring on paying in the area of 1,000 to 1,500 dollars for everything anyways,i'll just wait for the aluminum heads,to me,thats not too bad of a price,i've paid twice that for a set of heads for one my 289's which if i had shopped around would not have cost me that much, if being able to switch intakes,carbs,better flow and more HP for my 200 six costs over a grand,fine i'll do it.using that setup eliminates alot of headaches and trips to a machine shop to modify a stock head.most machine shops would see that as 'custom' work and charge accordingly,