Mallory 4309 or 4307m
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From: Long Island,NY
Car: Bone stock 1989 Iroc T-Top,1991 Z28
Engine: 5.7, Carbed 383
Transmission: 700r4, T-56
Mallory 4309 or 4307m
Both seem similar. 4309 3-12 psi, 4307m 4-25 psi plus gauge port. 4309 has 3/8 npt fittings 4307 has 6 an. Using a walbro 255 fuel pump in the fuel tank. Will be spraying the car in the future also.
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