New heads?

How about a few more details about the current combo.

Any track results?

About 30 years ago I helped my father put together a 360 for some bracket race use in his 3960lb 1979 Córdoba.
I gave him some pointers, and he did the bulk of the porting to the J heads himself(no flow numbers...... but probably 240 or less).
Flat top TRW’s, 509 cam, Torker 2....... it didn’t quite crest the 400hp mark(398 iirc).
With slicks, a 9” converter, and 4.56 gears it went mid-12’s.