Tune up this weekend

[Joe25da]

Got my parts in from rock today all ac delco pro. Wires, cap, rotor, coil. Gonna get the plugs from napa. Couple questions. The truck is an 84 3500. 350 m code. What are the best plugs to get? I know many recommend the delcos but I can't remember what part no.

[Irish_Alley]

is your engine stock?

[Irish_Alley]

R45TS is the ac number i use

[Joe25da]

Stock 350 4bbl. Hoping the ign parts improve performance. Once in a while, if I'm in 3rd in low rpm it will feel like it's starving for fuel, but if I downshift and rev it's fine. I put a new fuel filter on a while back too. Here's the truck

[Joe25da]

Started yesterday, did the cap, coil, rotor 2 plugs and wires. Finished the other 6 today. I haven't done one of thes in a long time, my toyotas have individual coils for each cylinder. All came back quick. So I fired it up, ran great but i thought wow that exhaust leak got worse? Then I realized the sound was the rotor hitting the walls of the distributor cap, one of the retaining screws came off the cap and it was crooked. Fixed that and no more noise. Test drive tomm

[Irish_Alley]

lol done that before

[outlaw70nova]

Very cool truck!

[enaberif]

Make sure you gap the plugs correctly too that can make a big difference.

[1979mmx350]

From my research, .35 to .45 seems to be the correct gap. I just angled mine out a bit with a screwdriver tho.

[enaberif]

From my research, .35 to .45 seems to be the correct gap. I just angled mine out a bit with a screwdriver tho.

.030 is for a points system and .045 is for a HEI system and you should really be using a gap tool as too little gap or too wide of a gap can cause issues.

[1979mmx350]

Thanks for the correction. I might need to go back in and do the job right then. Seems to be running fine, but I gapped em to what I thought would be about a third of a cm.