I checked my compression on my 93 5.0 with gt-40p heads and e303 cam with i think 1.6 roller rockers but only two cylinders and anything! cylinder number 2 was at 105 cylinder number 3 was at 125 all the others where 0! I pulled the heads the valves look fine and the head gasket looked good to! What could be the problem maybe wrong push rods or cam installed wrong! i didn't do the work to the car now i am just trying to fix it! Any comments thanks