PUMP QUESTION

[ocmzn2001]

hi guys i am new to the forum please help

i have a couple problems.

1.my pump seems to be on all the time even on idle
i checked all fittings and it seems that the line in to the solenoid has some air leaking
would this course the pump to stay on all the time

2.what boost pressure should i have it set too
i have tried at 0.9 bar and then 0.7 an then 0.3 and this one seems the best
i was told to set it just before misfiring ?????

3.what ratio of methanol should i run
i think the jet is for 30 percent

oh yes it is on a vauxhall astra coupe running 1.4 bar boost and then tapering off to 0.8

please help.