I bought a cam from Delta for my 302,good price,fast delivery.One problem though,like many cam grinders,Delta figures the grind on a rockerarm ratio of 1.5,but it's actually 1.4 using the sheetmetal rockers.So you're cam will be shy lift and duration unless you have the grinder allow for this fact.
I sold that cam to a friend,had Colt Cams in BC Canada grind me one based on the 1.4 rocker ratio,Delta would have done this for me,but I wanted to try Colt Cams.
I was very pleased with the quality and knowledge of the owner,the engine runs like a bear with my own cam specs , 215 duration at .050 lift,112 degree lobe separation,.305 lobe lift or .430 at the valve based on 1.4 rocker ratio.I set the intake up to open at 1 degree after TDC at .050 lift and closes at 35 degrees.The engine idles with a moderate lope at 700-800 rpm,pulls strongly from 1000 -4500 rpm,fairly quiet with valve clearance set at .012 intake and .014 exhaust.
