Request Rotary Injection on Dual Y manifold
#32775 from James Lindenthal · Rule change · TB 22-09 (2022-09 Fastrack)
Effective November 1, 2022, in EP Spec Lines, change Carburetor. No. & Type as follows:
Mazda RX-7 (12A/13B) (79-85):
"12A: (1) Nikki 4 bbl carburetor w/ primary choke(s) bored to match secondary choke(s) on a stock manifold or (1) Auto-type 2
bbl w/42mm choke(s) on a “dual-y” manifold. 13B: (1) Auto-type 2 bbl w/ 42mm choke(s) on a “dual-y” manifold, (1) 2 bbl fuel
injected throttle body w/ 42mm choke(s) on a “dual-y” manifold, or stock 13B fuel injection."
Mazda RX-7 (13B) (86-91):
"(1) Auto-type 2 bbl w/ 42mm choke(s) on a “dual-y” manifold, (1) 2 bbl fuel injected throttle body w/ 42mm choke(s) on a “dual-
y” manifold, or stock 13B fuel injection."