What size carb?

Gearhead999 · 06-05-2005, 08:53 AM

Agree with HotRoddin for the most part.

A drivable street car with an automatic should be OK with the 670. Also, the automatic doesn't need a double pumper or mechanical secondaries. Just overkill.

Street driving/racing depends on low end torque more then anything else. Large carbs kill low end punch.

Dave_mustang_50 · 06-05-2005, 09:08 AM

Thanks for the replies. Looks like im gonna stay with the 670 for now. I just wasnt sure if the 750 would have been better with a shot of spray. The Holley site lists the 670 for 300-400 hp cars.

06-05-2005, 08:53 AM	#1
Gearhead999 Registered Member Join Date: Sep 1998 Location: Oviedo, FL Posts: 992	Re: What size carb? Agree with HotRoddin for the most part. A drivable street car with an automatic should be OK with the 670. Also, the automatic doesn't need a double pumper or mechanical secondaries. Just overkill. Street driving/racing depends on low end torque more then anything else. Large carbs kill low end punch. __________________ "Support our Troops" Dave 1968 Cougar 2004 Thunderbird 2007 F150 Harley-Davidson, SuperCrew 1986 LTD 1997 Ranger 1992 Honda Civic

06-05-2005, 09:08 AM	#2
Dave_mustang_50 Registered Member Join Date: Aug 1999 Location: New Port Richey, Florida Posts: 483	Re: What size carb? Thanks for the replies. Looks like im gonna stay with the 670 for now. I just wasnt sure if the 750 would have been better with a shot of spray. The Holley site lists the 670 for 300-400 hp cars. __________________ 1969 Mach 1 351C with a c6(for now) Sold 92 Rag Top GT Procharged & intercooled DSS 331 LC Holley Systemax 2 Intake, Edelbrock RPM Heads,E 303 ,blow thru air meter, race bypass, 42 pph injectors,65mm tb,1.7 rr, Mac long tube headers w/off road H pipe, Force 2 catback, TKO,Pro 5.0, K&N, Alum DS,3 core radiator, subframe connectors,3.73`s, Nitto DR`s and a Heavy Foot.

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