
IMCA Stock Car, SportMod aluminum 4412SA carburetor requirements
VINTON, Iowa (Oct. 1) – Holley’s first production run of new aluminum 4412SA carburetor main bodies have some issues that will affect some IMCA racers. Holley recalled and recovered all first production runs of this carburetor with the exception of one carburetor builder. Holley’s Circle Track Manager Graham Fordyce said, “There was an issue with the original castings that we released to carburetor modifiers (did not fit the sanction gages) so the tooling has been revised. The L6R3250B aluminum castings should NOT be allowed for use in competition.” Effective immediately this original release of casting number L6R3250B aluminum 4412 carburetor will not be allowed in IMCA competition. This product can be identified by the casting number behind the choke horn. Also effective immediately, any driver competing at an IMCA sanctioned event with this product will be disqualified. Any attempt at removing the casting number will result in disqualification as well. This product does not meet carburetor gauges used by IMCA inspectors. The new and corrected 4412SA aluminum main body casting number is L6R199B and is approved [Read More]