Can somone explain the siemens poundage rate thing to me as in what poundage is equivalant to the injectors of old (ie greens light blues etc) and what benefit is there from going this route. Im thinking of going greys as ive run them before but i seem to remember somone saying the siemens have a better spray patten, so the big question is what to go for and what poundage for what bhp.

 

think the smallest 55lb ones are bigger than grays!

 

isnt 10cc 1lb?

ie 550cc is 55lb