new fuel pump or add a regulator??

I'm putting my 71 340/727 Dart back to a more cruise and car show friendly setup.

I'm ditching the Holley 3310 (with a bunch of quick change trackside racing goodies) for a spreadbore thermoquad for a more stock look and hopefully better idle and cruise quality.

I currently have the Carter Hi Po mechanical pump that puts out around 8psi to the Holley. I've been told that is too much pressure for the Thermoquad.

So here is my dilemma. Buy a cheap ($20 shipped) Carter M6866 muscle car pump that flows 5.5 to 6.5 psi or get a fuel pressure regulator with a guage for more money.

Any advice would be appreciated.