Hey guys just took my stang to the track for the first time since the rebuild....it has a 347 stroker with afr 185's and a comp cam designed for nitrous....now i ran without the juice cause i am installin it today...ne wayz times were not bad....12.47@114mph.....its a convertible...full weight on et streets....spare tire, jack, no skinnies all seats in and everything..car weighed 3850 without driver...so im gonna hook up this Nitrous express wet kit and spray either 100 or 125 just wanna get into some 11's...now my q is this i dont wanna use the micro switch i wanna have total control of when the spray comes on....how would i wire the soloniods?? the fuel soloniod has 2 red wires and the n20 soloniod has 2 blue wires which ones are ground?!?! and which are positive??