which one
whats the different in valve 1.47 or 1.46 valve spring. im thinking 61 cc 2.02/1.60 at 540 lift this is the bolt on trick flow head right they have so many i confussed i dont need the kit cause i already have the manifold. and i dont need anything big. i want something better then e7 heads and how does trick flow compared to edelbrock heads