Anybody have any experience with them good or bad?? High Performance Fuel Pump Upgrade For Raw Water Pump Mounted Fuel Pumps On Big Block Chevy Gen 5 & 6 Engines - Hardin Marine

I only have about 10 hrs on mine. I added a 1/2" pickup in the tank and running -8 fuel line. No problems keeping up with a dominator and 650HP.

Phragle,

Let me know if you have any questions about it.

They work great. Had one on my 700hp 575SCI until I finally put a Weldon on it

Eddie Young recommened running them on my twin 540's 620hp,7 psi all day long.

Thanks to Bill at Diamond , I have one on the way.

Looking at going with one of these KE fuel pumps for my 525 rebuild (600hp), do I need to upgrade to the KE, rebuild the original, or is it better to run one of these Holleys?

https://www.summitracing.com/parts/hly-12-454-25/applications/engine-size/7-4l-454