TEST DATA SHEET			DATE	08/24/10
TEST DESCRIPTION			INTAKE #2 CRAWFORD 4 PORT HEAD FOR MODEL A FORD, 1.625" PORT
IN.1  VALVE DIA		1.700	SQ. IN.	2.178	STEM DIAMETER		0.341
IN.2 VALVE DIA		1.383	SQ.IN.	1.411		COMBINED VALVE AREA:			3.589	SQ. IN.
ORF. FLOW @ 25"			245.18	TST.CORR.FACTOR			0.971
VALVE L/D RATIO			0.050	0.100	0.150	0.200	0.250	0.300	0.350	0.400
INTAKE VALVE LIFT			0.179	0.359	0.538	0.718	0.897
CORR FLOW RANGE IN.			034.95	069.50	146.58	290.24	434.88	578.55
TEST NUMBER		1.000	2.000	3.000	4.000	5.000	6.000
TEST PRESSURE		28.00	28.00	28.00	28.00	28.00	28.00
IN. LIFT		0.089	0.179	0.269	0.359	0.448	0.538
FLOW RANGE		146.58	290.24	290.24	290.24	290.24	290.24
FLOWMETER		063.00	057.00	072.80	080.20	083.70	086.70
CHART CFM		092.35	165.44	211.29	232.77	242.93	251.64
LEAKAGE CFM		000.00	000.00	000.00	000.00	000.00	000.00
`
CORRECTED		092.35	165.44	211.29	232.77	242.93	251.64
TEST CFM
CORR.CFM/SQ. IN.
INTAKE		025.73	046.10	058.87	064.86	067.69	070.11
POT CFM/SQ IN		11.40	22.80	34.20	45.60	57.10	68.60
%FLOW RATING
INTAKE		225.70	202.17	172.14	142.23	118.54	102.21
CALCULATED POTENTIAL HORSEPOWER					258.83	@	6621	RPM
NOTES:	DUAL INTAKE VALVES, 1.700" & 1.383"
	4 INTAKE PORTS, 1.300" DIAMETER
	INTAKE PORT BLENDED INTO DUAL BOWL AREA.
	3 ANGLE VALVE JOB w HAND RADIUSED SEATS INTO BOWL AREA
	INTAKE VALVE: 12 DEGREE BACKSIDE, 3/8" RADIUS
	45 DEGREE X .095" FACE, 25 DEGREE BACK CUT
	INTAKE SEAT:  44 DEGREE X .075", 20 DEGREE TOP CUT, 60 DEGREE UNDERCUT
	HAND RADIUSED SEAT INTO BOWL AREA
	RADIUSED ADAPTOR INSTALLED
	EXCELLENT FLOW