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Whats the best plug for my setup? #970540
04/10/11 05:19 PM
04/10/11 05:19 PM
Joined: Nov 2003
Posts: 1,032
illinois
B
bigblk66_coronet Offline OP
super stock
bigblk66_coronet  Offline OP
super stock
B

Joined: Nov 2003
Posts: 1,032
illinois
Hey guys im wondering what everyone thinks would be the best plug for my car. Heres what im running.....30 over 440,10:1,292 purple shaft,750 DP,Eddy heads,TTi headers, Brand new Firecore(ditributor,wires,coil) and an Msd 6AL box, auto with a 4:30 gear. I have been running Autolite 3924's. For my combo what do you guys think i should run and what should i gap them at? I was having all kinds of problems last year so i changed the whole ignition but i only got to drive the car once. So i have no idea if ive fixed the problem or not. I think the plugs were shot before i changed the ignition. Anyone point me in the right direction?..Thanks..Joe

Re: Whats the best plug for my setup? [Re: bigblk66_coronet] #970541
04/10/11 05:45 PM
04/10/11 05:45 PM
Joined: Aug 2003
Posts: 7,063
Indiana
maxie Offline
master
maxie  Offline
master

Joined: Aug 2003
Posts: 7,063
Indiana
I run autolites in my hemi with msd and I have found they work the best for me. I am one heat range hotter than stock and my gap is .040. I also run 40 degrees of total timing.

Re: Whats the best plug for my setup? [Re: maxie] #970542
04/11/11 12:41 AM
04/11/11 12:41 AM
Joined: Jan 2003
Posts: 27,421
Balt. Md
3
383man Offline
Too Many Posts
383man  Offline
Too Many Posts
3

Joined: Jan 2003
Posts: 27,421
Balt. Md
I have a .030 over 440 with the MP .557 cam. I run Autolite 73' s racing plug. Works fine on the street for me. Ron







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