09 plus12-3sct vs 353 race 12
Just picked up a new '09 plus12-3sct. From what I understand the 09 353's rev abit higher, but the plus 12-3sct has better low to mid range power.
What makes them different?
1) Timing on the crank?
2) Exhaust port timing?
3) Transfer Timing?
4) Piston Material (microcast vs billet)?