if you already have the parts for the twin system thats definatly what i would do. with 850hp that holley blue pump is past maxed out trying to supply that motor by itself.
if you have 2-dual port regs i would run seperate lines to each inlet on the bowls. the amount of fuel that needs to be flowed to the motor, i wouldnt risk starving a bowl. on our 600ci puller were right at 1000hp with a single 1250, we're runnign a single BG400 pump with 2 suction lines fromt he cell into a BG-4 port reg with seperate lines going to each inlet on the carb. our previous setup was same pump setup with a BG-2 port reg, one line to each bowl. we burn just about 3 gallons of fuel per pass, and over 3 when were on the 250 shot of spray.
if memory serves me right john at AED said dommys dont like alot of pressure about 6-7psi MAX.
edit- it could be tricky setting the fuel pressure for the first time, idk how the regs will like to back feed through the other when one system is off. i would probably set each side's pressure at 7psi with the other system blocked off just to be sure.
1991 Ranger, (stockish
) 460BBF and 2-1/2 ton Rockwells. WORK IN PROGRESS.
RIP Matt (greenbroncoguy) 6-16-86/1-29-12. You will be missed but never forgotten.
Last edited by BBFRanger; 04-03-2012 at 10:56 AM.