RHS or EDDY

I am going to replace the heads on my 408 in a few weeks and don't want to make a mistake. The motor now has a set of big valved J heads cc'd @71 they have had some port work on them but I do not know the extent. My motor is now 9.2:1 comp, and a street only motor.

Specs:

1974 360 bored .030
Wiseco -20 pistons
Eagle crank 4"
MP 248 - 484 Hyd cam (installed 4* advanced)
Edelbrock Air Gap intake
edelbrock 600 cfm (changing to 750-800)
4 speed
3:55 sure grip
28" tires

I want the car to run on Pump gas. Looking for advice on what heads to install for a healthy street machine. It runs OK now but just does not set me back the way I would like. I am thinking compression increase might help?????

Thanks

Looks like he WANTS to replace his heads by this statement.
I think, no wait...I KNOW there's a reason why people are recommending RHS heads, specifically our heads...too bad not everybody can figure it out!

OP...if you do change the heads, it would benefiet you to change the cam at the same time if it's in your budget. The 750 DP will work great also.
When all the web bull settles, work with a builder who has a great rep and one you trust to help guide you. Doesn't have to be me, god knows there are other builders out there.