View Full Version : what spark plugs?
whitey70ss
10-12-2009, 01:00 PM
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
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
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