I was reading the tuning section of the site and came across the HRC cards and the wire splice bit.

After reading the HRC card bit, from what i understand the text is basically saying that you need a different loom and card to make a decent difference, other wise using a standard loom and a differnt card you will make a tiny difference if you additionally tune the carbs and use an after market exhaust...is this correct or am i totally lost?

now for the wire splice part...i understood that if you perform the wire splice it would derestrict the advance, ignition, etc fully like it would if you used a new hrc card and loom (racing spec one or what ever)... is this right or yet again am i barking up the wrong tree?

i need to get this sorted so i can decide on what model of nsr to buy...

thanks in advance