i normally go for 20-30nm but that is done by feel so not 100% accurate and more just from years on engines. However between the 2 sets you have listed it doesnt make a great deal of difference at all.
i normally go for 20-30nm but that is done by feel so not 100% accurate and more just from years on engines. However between the 2 sets you have listed it doesnt make a great deal of difference at all.