What is an adequate fuel system for a 550+HP 406sbc? Start with say a Holley Black pump and go from there. Need at least 1/2" line? I'm thinking mine may not be enough. Holley Blue w/3/8" steel/-6AN lines. Still using stock fuel tank and pickup. Holley 950HP-6.5psi at carb-79jets front and rear. Having high RPM misfire/surge. Plugs look ok could be slightly lean. Going to try different jets next weekend but question came up about fuel system. What do you guys think? Sorry if this has been asked before but I couldn't find it when i searched. Thanks. Matt