1973 Mercury Comet - Test - Car Craft Magazine

A Mad Scientist Twisting Small Block Ford Dr. Setzer

	TEST 1		TEST 2		DIFFERENCE
RPM	TQ	HP	TQ	HP	TQ	HP
4,600	352	308	382	335	+30	+27
4,800	365	334	389	356	+24	+22
5,000	375	357	391	373	+16	+16
5,200	375	371	393	389	+18	+18
5,400	376	387	394	406	+18	+19
5,600	380	405	398	424	+18	+19
5,800	376	416	396	438	+20	+22
6,000	375	428	399	456	+24	+28
6,200	375	442	401	473	+26	+31
6,400	371	452	401	489	+30	+37
6,600	364	458	396	498	+32	+40
6,800	358	464	391	507	+33	+43
7,000	353	470	382	510	+29	+40
7,200	342	469	372	510	+30	+41
7,400	332	469	353	498	+21	+29
Peak	378	472	403	512
Power/ci	1.23	1.54	1.31	1.67

'AFR 185 cNC Windsor Ford Flow TestThese are the flow numbers on the Westech bench using Tom's heads that are angle milled to 51cc chambers. This is with his 2.20/1.60-inch valves and valve job on a 4.030-inch bore with a radiused entry on the intake side and no flow tube on the exhaust side.

VALVE	INTAKE	EXHAUST	E/I
LIFT
0.050	32	24	75%
0.100	67	56	84%
0.200	145	114	79%
0.300	202	155	77%
0.400	230	174	76%
0.500	248	183	74%
0.600	265	185	70%
0.700	272	188	69%

E/I represents the flow relationship in percentage of the exhaust port to the intake port. Generally, percentages over 70 to 75 percent are considered good.

SOURCES
COMP Cams	Milodon 2250 Agate Ct. Simi Valley CA 93065 805-577-5950 www.milodon.net
Airflow Research (AFR) Pacoima CA airflowresearch.com	Sportsman Racing Pistons (SRP) 7-14/-898-9763 www.jepistons.com
MSD Ignition El Paso TX 9-15/-857-5200 msdignition.com	Automotive Racing Products (ARP) 531 Spectrum Circle Oxnard CA 93030 805-278-7223
Westech Performance Group 11098 Venture Dr., Unit C Mira Loma CA 91752 9-09/-685-4767 www.westechperformance.com	Scat Enterprises 3-10/-370-5501 scatenterprises.com
Fuel Air Spark Technology (FAST) Ashland MS www.fuelairspark.com