We have preliminary flow numbers for the heads with the stock valves (1.86/1.46).
After adding the new bigger valves (1.94/1.55)we should gain a little more.

int
.100 64
.200 156
.300 189
.400 230
.500 264
.600 291
.650 310

ex
.100 52
.200 98
.300 130
.400 160
.500 190
.600 211

 

sick i tell you.

 

who did the heads? Im really thinking about staying stock valves

 

Matt @ Delk Performance

 

those are nice flow numbers at 500 and 550 lift.

 

Thanks.