Porting 241's
 

My heads are getting closer to being finished. They are being ported by a local shop (friend of mine), still a little left to do on them and then the valve and seat work. I think the numbers are looking really good so far. Im running an LS6 intake, G5X3 cam, TD's and QTP LT's, should be fun. Stock block though:bang: What do you guys think? If I remember correctly stock flow was 253 at .5, 252 at .55, and 249 at .6. I'll have to dig up that sheet

Lift / CFM
.1 / 65.6
.15 / 103.5
.2 / 142.0
.25 / 178.6
.3 / 205.0
.35 / 229.2
.4 / 254.5
.45 / 278.1
.5 / 289.7
.55 / 280.4
.6 / 284.6