Fuel pressure issue fixed.
The dw300 pump didn’t have a check valve in it, looks like they re-designed the pump. The pump was replaced with a holly 12-170 100GPH pump, with a check valve. Other pump without check valve wasn’t building pressure fast enough. I guess that’s what happens when the fuel flows backwards
Holds a constant 80+ psi even with 40+ % ethanol
At around 840rwhp.
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928rwhp - 93 | 1040rwhp/898rwrq - E65 SAE
LME 377 LT4 Short Block | Magnuson 2650 80mm upper w/13% lower (9.06) | DSX Lid & Valve Covers | CSP Custom Cam w/32% fuel lobe | CID Heads | NW 103mm TB | Roto Fab Big Gulp | CSP 2" Headers w/Green GESI Gen 2 Cats | Borla 3" Full Cat Back w/ S-Type| Mighty Mouse Wild Catch Can| Custom Holley Low side Fuel system| TooHigh PSI Port Injection w/Holley Controller | Forced Inductions Interchiller w/2 gallon fender tank | TK Performance built 10L90