I think if the discussion is towards smaller motors say sub 306 then mod > push. But anything over that the pushrod wins. I don't care how many valves, cams, whatever, you NEED cubes period. Especially in the N/A world. Thats the down fall of the mod. The design itself for building hp is better than the old school pushrod. Its just lack of cubes kills it.
-Mark
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98' cobra