i have a 66 chevy el camino with the original 327.how would i know if i have double hump heads and what do these heads do compared to normal ones?thanks
old school, on the cylinder head they have, casted in. on the rear of the heads, two hump like desings. some have one. Any way it's got larger intake valves some refer to 2.02 heads. todays intake designs can of out do all these heads. not very friendly on emisions and take on lots of gasoline... hope i answered it correct and briefly
