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Ol' Ron · 03-29-2013, 11:10 PM

The 4bl carb on a flathead is the most practical modification you can make. the engine runs on the primaries until you need more power and adds more as you need it. It also is very economical in operation and trouble free. I recommend the Edelbrock 500 cfm as it's more tunable than the 390.

03-29-2013, 11:10 PM	#8
Ol' Ron Senior Member Join Date: May 2010 Location: Chester Vt Posts: 8,873	Re: 4bbl carb on flathead? The 4bl carb on a flathead is the most practical modification you can make. the engine runs on the primaries until you need more power and adds more as you need it. It also is very economical in operation and trouble free. I recommend the Edelbrock 500 cfm as it's more tunable than the 390.