[NOTCH306]

I emailed world products and here is that they say they flow
Intake
173@ .300
212@ .400
233@ .500
242@ .600
250@ .700
Exhaust
114@ .300
123@ .400
130@ .500
134@ .600
135@ .700


When i flowed mine at 28 water pressure they flowed
Intake
125@ .200
177@ .300
215@ .400
238@ .500
249@ .600
250@ .650
Exhaust
105@ .200
129@ .300
151@ .400
157@ .500
165@ .600
167@ .650

Now here is the real shittttttyyyyy part. I ported these at school and i go to wyotech. my instructor has done head porting for like 20 years and gets upwards to 1000 dollars to port a set of heads and is good an what he does. On the intake i did little work...i shrank the valve guide a little and opened up the bowl a small amount. I did very little gasket matching work and then put a finish on it with a 50 grit paper roll. on the exhaust we did the same. I also got a new valve job done on them and here are the numbers
Intake
96@ .200
103@ .300
163@ .400
193@ .500
212@ .600
216@ .650
Exhaust
134@ .200
211@ .300
234@ .400
236@ .500
241@ .600
242@ .650

This stuff is crazy because some how i lost freakin 37 cfm at .600 on the intake and i really didn't do much of anything to them. after i was coming up with these numbers i thought maybe my orginal flow was high for some reason so i email world and yes they were a little high but by only like 5 cfm no big deal. but at the same time i picked up 76 cfm on the exhaust thats crazy. my intrustor said to me i've been doing this a long time and it just doesn't make any sense that the work done on that intake port would hurt that thing at all. maybe he doesn't know what he is talking about i don't know. i am putting my car back on the dyno here soon to see what happens hopefully that will tell the story. you have to figure though that everything involved in that flow with greatly change when fuel is added into the mix. i will keep you guys posted.
Brian