Thanks , original spec was cpi , had to change to vortec heads to use the mercruiser manifold and as cpi is one injector to six poppets I wired all 6 seperates so all use the same pos and neg so batch firing as you thought initially mercruiser uses 4bar fpr but was way too rich so installed adjustable and 3bar is rich but runs fairly well and have been like this for a while as using lpg too, injector multiplier will need to be changed so gussing multiply 24lbs x6 to get overall figure for cpi injector sizing ? will I need additional hardware to change values?
Thanks