New Marshall Regulator not delivering the gas like the old Fisher

[Lothlorian]

I developed a gas leak in my old Fisher (1973 ) regulator so I figured it was time for a new one. I read many threads on this forum and finally decided on a Marshall. All the RV dealers I called around this area sell Marshall.

I installed the new regulator and nothing leaked. I did here a hissing sound coming out of the screen port on the bottom, but I did not smell any gas. I used the soap and water around all the fittings and did not get any bubbles. I tried the burners and they worked but I did not get the flame like I did before. The flames look like I have it on low.

Should I be getting flames like that or is there something wrong with this new LP regulator. It is a Marshall dual atomatic change over regulator.

Brian