Hemi engine swap..is it worth it

Before you spend a lot to get a lot of HP Are you just wanting to enjoy driving the car or are you wanting to go to the track and make money from it. My 67 has a pretty much stock 04 5.7 in it with the 545rfe transmission. I drive this car all over the country I take it to the strip once a year for Mopar vs the world for fun. This car hauls *** (to me) and is a fun to drive streetable car it’s less than 400 hp for sure to rear wheels. I have a 6.1 intake on it 2005 ECU and rest is stock. I pulled it from a wrecked truck. Plus I have AC finally.

I won't be going all over the country or running ac. It will be to have some fun on the streets and take to track occasionally. I don't have to hit 500 hp. Would like a cam upgrade while it's being rebuilt.