Holley Main Jets (2) - 71 RS004C18 IMCA / Wide 5 Spindle

IMCA / Wide 5 Spindle Nuts

90 degree analog needle sweep provides reliable performance on a budget

Steel Flush Head Fastener 7/16" x

Comes complete with M6-1

Holley Main Jets (2) - 71 RS004C18 IMCA / Wide 5 SpindleSet of two carburetor main jets. Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors powered every NASCAR Cup team and nearly every NHRA Pro Stock champion for four decades. Now, Holley EFI products power these cars and are dominating the performance world. Holley products for GM's popular LS engine are dominating the LS scene as well. Holley's products also include performance fuel pumps, intake manifolds and