273 mild build-----

not trying to start a debate,i just went with what the tech adviser at isky suggested.the cam had great low end response in a 9 to one 318.i ran this combo(intake/cam )in my wifes 73 valiant. this car was driven every where .it had good torque down low,and got 20 mpg highway with 2:76 gears.the street master had the smaller ports and was cheap (25 bucks at a swapmeet)and flows decent to 4500 rpms,which is the end of the cams range anyway.on the note of lsa ,according to schnieder,isky,and crower a narrow lsa builds more cyilinder pressure due to the earlier intake closing point .i just assume they know what they are talking about,but dont take my word on it call and ask them yourself.