Finally having time to answer.....
The engine mods on the GN when the Infineon video was taken were: TE-44, 33# injectors, Deep Sump fully baffled oil pan, Acufab plenum w/RJC power Plate, 62mm T-body, PTE FMIC, Dual Spal fans, 9/11 TC. I didn't have the PTS trans in at that time.
Suspension mods were: Poly body bushings & poly motor/trans mounts, Monte Carlo & under hood braces, rear frame brace, Kenne-Bell brace behind rear seat, stock front control arms w/poly bushings, boxed upper rear control arms, Southside lower rear control arms.
I've done more tweaking since then, but as Jerry mentioned earler the motor still has the original valve springs at 337,000+ miles.
Ralph