fuel pressure gauge recommendation sought

I just have a holley fuel pressure gauge inline on both my gas and nitrous sides. I've got an electric fuel pressure gauge that I'm going to put in on my nitrous side though so I can make sure something doesn't go wrong.
 
Thanks to all y'alls for the advice

I just ordered an air-filled Holley gauge from Summit along with some new rocker studs. The studs really irked me. I had ordered some Comp. Cams Pro Magnum roller rockers over summer and got some new ARP studs to go with them. The guy at Summit selected the studs for me only they are too short to fit through the rocker. They plain just don't fit. And, and, they are giving me crap about returning the old ones. We will see about that.
 
10secgoal said:
Do you have to pay duty on items that are sent to you that you don't buy ?
I mean let's say you were to pay me, I send you the items, do you still pay that stupid amount of tax for them ?

You pay duty on the $$ value of the item.

however, on something like an warrenty exchange you would put "warranty exchange - $0" in the customs declaration form which should prevent the importer from having to pay duty again.

Of course... that doesn't mean the sender will do that. When summit shipped me someone else's order I told them to make sure they declared it as a warrenty exchange. They didn't so I got nailed with import fees again. I phoned summit up and luckily they refunded me the duty fees. Woulda been much easier if they had listened to my instructions...
 
10secgoal said:
Do you have to pay duty on items that are sent to you that you don't buy ?
I mean let's say you were to pay me, I send you the items, do you still pay that stupid amount of tax for them ?

Lamentably, yes. If the amount declared on the customs form is in excess of $50, I get hit with 10% duty, 20% sales tax, and a $12-20 processing fee. If you declare a lesser value but Customs notices that the insured value is higher, then they assess on the insured amount. If you both declare and insure under the actual value, you escape duty but risk limiting yourself to the insured amount should the package get lost or stolen.

I get around this by bringing stuff back with me in my luggage when I go to the US (every November) and when my wife travels back for business (frequently) and also when friends and family come to visit. If I need a part urgently and cannot wait for those times, I am stuck with paying the duty on big purchases.