Street Cruser

MOPAROFFICIAL said

Seems like a pretty stout build.
Getting the air in has ways been the more difficult part of running the slant. The small bore doesn't allow for big valves without shrouding them really bad.. which of course has effect on the flow characteristics from one side of the port to the next. I hear 200-220 cfm is about it. Most I've gotten was 202cfm on one port and the rest 196-199cfm w/1.7 intakes.

Click to expand...

port flow numbers. I have 30 degree seats on this head. This gives up some flow at the higher lifts, but comes off the seat faster to get the flow started sooner.

Lift Intake Exhaust
0.050 27.1 17.2
0.100 56.4 35.9
0.150 82.5 55.3
0.200 106.5 70
0.250 126.3 85.2
0.300 144.6 101.2
0.350 156.8 112.1
0.400 163.0 120.1
0.450 168.5 126.4
0.500 172.5 131.1
0.550 173.3 136.3
0.600 173.5 138.1