the CNC'd intake port

the CNC'd exhaust port

flow bench data of first CNC'd production head
................Standard Chamber Head - 60cc
Valve Lift ... Int Port Flow ... Exh Port Flow
0.200" ....... 145.7 cfm .......... 97.3 cfm
0.300" ....... 211.3 cfm ........ 140.7 cfm
0.400" ....... 270.3 cfm ........ 174.1 cfm
0.500" ....... 315.8 cfm ........ 202.1 cfm
0.600" ....... 332.6 cfm ........ 218.4 cfm
0.700" ....... 337.7 cfm ........ 230.7 cfm
0.800" ....... 347.5 cfm ........ 238.6 cfm
0.900" ....... 349.0 cfm ........ 244.9 cfm
1.000" ....... ________ ........ ________
And ... the production CNC'd combustion chamber, sans the blue light effects

-G