partsman1965
Well-Known Member
I need input on recommended spark plug for my 340. I'm running forged flat tops with J heads with 2.02 intakes. 484 lift MP purple shaft hydraulic cam with Torker 340 intake and Holley Street Avenger 780 CFM vacuum secondaries. Header and 2 1/2 exhaust through flow masters.
Chrome box ignition,stock dizzy and Mallory coil. Any info would be great.
Chrome box ignition,stock dizzy and Mallory coil. Any info would be great.