here we go.
old heads (Lift / Flow I/E) .100 68 65 .200 144 112 .300 213 156 .400 258 194 .500 282 216 .600 294 218 .700 300 220
new heads (Lift / Flow I/E) .100 70 53 .200 144 110 .300 206 150 .400 260 182 .500 296 206 .600 316 224 .700 324 232
directly compared the new heads intake numbers are better from .400" Lift and up, the exhaust numbers are not as good as with the procomps. At the moment i run a cam that´s 250/250 @ .050", i think some split (more exhaust duration) would help the situation. I have sth. in my mind.....as always, still learning as i go.
Michael