347 factory cast heads 94 mustang
2.10 intake 1.60 exhaust
Lift=Valve lift while testing Previous CFM=original
flow
CurrentCFM=flow after porting % Gain=flow
improvement in percent
Exhaust/Intake=Relationship between intake & exhaust flow
Flowed @ 28 in.
Intake Port Test Results
Lift
Previous CFM Current CFM
% Gain Exhaust/Intake
|
0.050 |
N/A |
35.4 |
N/A |
74.1 |
|
0.100 |
N/A |
68.8 |
N/A |
73.0 |
|
0.200 |
N/A |
139.1 |
N/A |
72.7 |
|
0.300 |
N/A |
181.2 |
N/A |
71.7 |
|
0.400 |
N/A |
222.8 |
N/A |
71.3 |
|
0.450 |
N/A |
231.7 |
N/A |
74.6 |
|
0.500 |
N/A |
246.6 |
N/A |
72.0 |
|
0.550 |
N/A |
248.1 |
N/A |
73.5 |
Exhaust Port Test Results
Lift
Previous CFM Current CFM
% Gain Exhaust/Intake
|
0.050 |
N/A |
26.3 |
N/A |
74.1 |
|
0.100 |
N/A |
50.2 |
N/A |
73.0 |
|
0.200 |
N/A |
101.1 |
N/A |
72.7 |
|
0.300 |
N/A |
130.0 |
N/A |
71.3 |
|
0.400 |
N/A |
158.9 |
N/A |
71.3 |
|
0.450 |
N/A |
172.8 |
N/A |
74.6 |
|
0.500 |
N/A |
177.6 |
N/A |
72.0 |
|
0.550 |
N/A |
182.4 |
N/A |
73.5 |
Work Done. Porting, flow tested, bowl work, os valve in and ex, set up springs, machine for 3/8 studs $300 labor. VIP commerical discount. John at Torture tested racing. Cust request original parts be returned.
