This question illustrates my ignorance; How do you increase/ adjust the fuel pressure with a rising rate FPR? Do you loosen the bolt or tighten it and do you have to measure the P or can you go by the ARM1? Thanx Danno, BTW

 

you tighten the bolt to increase pressure. you prob need a FP guage so you at least know what range you are in for FP before you start tuning with the arm