Recommend sending the heads to fox lake and have them ported.
On a previous car I had, I had a 363 R motor with Fox lake stage 2 TW heads, TFS R intake and a YS trim vortech. That car made ~720rwhp with an A9L processor (SCTchip tuned) and a 5 speed.
That same motor made 977rwhp at 30lbs of boost when I switched from the blower to a turbo and FAST electronics. Ported TW heads will support a LOT of power.
1987 Saleen #065, Vortech S Trim Supercharger ~11psi, Edelbrock Heads, Saleen Intake. 526 RWHP
1988 Hatchback, Edelbrock heads, Anderson B31 cam, Performer RPM II Intake, Vortech supercharger ~15psi, 552rwhp 517rwtq @5500, 93 pump gas.
6.79 @104+ 1/8 mile on 16" radials and a 5 speed.