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-   -   what spark plugs? (https://www.racingjunk.com/forums/showthread.php?t=26010)

whitey70ss 10-12-2009 01:00 PM

what spark plugs?
 
Anyone tell me what is a good spark plug to use on a street driven sbc edelbrock perf. rpm heads 10 to 10.5 comp. Ive been using accel 576s, I'm just wondering if there is a better choice? Let me know if you need more info.

TS1955 10-12-2009 02:35 PM

I've used Accels, Champions, NGKs, and AC Delcos and have good luck with all of them. I'm running Champion racing plugs now. As long as it's the right heat range and it ignites the fuel in the cylinder, it's a good plug. JMO.

TS1955

whitey70ss 10-12-2009 02:40 PM

Might be a stupid question but what heat range should I be running? I'm running 93 octane? 26 degrees of timing.

Tod74 10-12-2009 10:31 PM

if using AC Delco I always ran R45 or R46....NGK I use 8'sor 7's.

I'd use whatever one allowed it to idle the cleanest since it's a street car.
jmo

TS1955 10-13-2009 03:22 AM


Originally Posted by Tod74
if using AC Delco I always ran R45 or R46....NGK I use 8'sor 7's.

I'd use whatever one allowed it to idle the cleanest since it's a street car.
jmo

X2...Good call Tod

TS1955

mep 10-14-2009 01:35 PM

I am using R45TS in a stock-type 350 with mild cam. Seem to run good and they are pretty cheap. Mep

russ67chevelle 10-17-2009 01:31 PM

call head manufacturer and ask,id think if using 26 degrees you must have 15:1 compression,if running pump gas probably all in set at 36 and be safe


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