When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Carbs are finicky with fuel pressure. Edelbrock's tend to like anywhere between 4.5-5.5 psi (check your carb manual for what they recommend). Your mechanical pump will be producing a lot more than that without a pressure regulator to turn it down.
I don't know if this is true. I have an Edelbrock 1405 and mechanic fuel pump and so far, I haven't had any symptoms of fuel pressure being too high. Although, I have thought about putting a regulator on 'er anyway just to be safe!
Rezvani's Latest Post-Apocalytic Monster Is a Ford F-150 Raptor Underneath
Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.