Intake manifold vacuum port blocking..?

[AL92]

I have jm fab intake with brass ports on the bottom.I am wondering can block unused ports with just rubber caps or should I use like hoses and bolts and clamps.Woudl think rubber vacuum caps even if tight would blow off at 30psi that might go thru that intake occassionally. And since they are under the intake and out of site might not now the lines have come off.

I could also use wiretires on the rubber caps maybe??What do you guys use?

 

[andymoraitis]

Al,

I use caps on mine and while I don't see 30psi, I've seen 28 and never had a problem. Just make sure they're a wee bit smaller than the optimal size so that they sit on their snugly. You can zip tie them if you like, but it's not necessary.

Enjoy,

Andy