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grancuda · 06-08-2009, 10:18 PM

I got the 350cu 260hp GM crate long block with Edelbrock 600 carb, Edelbrock Performer RPM(non-air gap) and the factory 71 truck ram horn manifolds and I was considering getting some headers and I didn't know how much if any it would help hwy gas mileage. Any ideas?

06-08-2009, 10:18 PM	#1
grancuda Registered User Join Date: Nov 2007 Location: Central OK Posts: 396	Ramhorns vs. Headers for MPG gains? I got the 350cu 260hp GM crate long block with Edelbrock 600 carb, Edelbrock Performer RPM(non-air gap) and the factory 71 truck ram horn manifolds and I was considering getting some headers and I didn't know how much if any it would help hwy gas mileage. Any ideas?