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-   -   Dumb sparkplug question (https://67-72chevytrucks.com/vboard/showthread.php?t=283668)

slepysal 03-19-2008 01:23 AM
Dumb sparkplug question
 
Ok so here is my Dumb question of the day: I have a 73 350 /350 with a Q-jet4bbl.,and it has electronic ingition.
What spark plug should I be running and at what gap?
I know lame but ........
thanks in advance

Malo83 03-19-2008 02:03 AM
Re: Dumb sparkplug question
 
Stock probably AC R45TS gapped at 45.
I prefer AC Rapidfires #2's gapped at 50 with a HYPERTECH Super Coil ;)

old Rusty C10 03-19-2008 02:25 AM
Re: Dumb sparkplug question
 
on a stock GM engine use stock GM plugs known as AC Delco R45TS gapped at 45

gchemist 03-19-2008 02:52 AM
Re: Dumb sparkplug question
 
NGK's at 45

slepysal 03-19-2008 02:58 AM
Re: Dumb sparkplug question
 
Thanks Malo and Rusty !!! W hat part # for ngk ?

gchemist 03-19-2008 04:28 AM
Re: Dumb sparkplug question
 
You can buy several versions.
http://www.ngksparkplugs.com/part_fi..._suv/index.asp

I use the V power on my ZZ4 and 4.3 Jimmy.


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