Here's what a set of Renegade's heads flowed for a friends street car, and Jim could have gone a bit more, but he wanted to keep the port ratio at around 70% for a good split.
intake:
.100"-68
.200"-120
.300"-166
.400"-190
.500"-208
.600"-220
exhaust:
.100"-95
.200"-142
.300"-161
.400"-170
.500"-172
.600"-178
Something to remember..absolute peak is nothing for comparing flow numbers..
Add up the values from .100-.600,and them add up the same values from the head that is being compared-and see who has more total "area under the curve". Also remember..you spend alot more time at .300-.400 lift than you do at .600 from just the physical aspects of camshaft lobes.
I am not trying to start a war here or anything. I guess I expressed myself wrong in the first couple of posts. I just don't think that the PI's are the all high and mighty for street cars when you get into porting. From what I have seen is the NPI's can be made to work very well, and for less total cost. Sure, out of the box, there's no comparison, PI hands down.
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