Need recomendation for decent sparkplugs h/c
#1
Need recomendation for decent sparkplugs h/c
11:1 compression 5.7 ls1 that spends a lot of time in the 5-7k rpm range on 91 octane. Only about 420rwh. Not looking for anything exotic. Honestly I can't remember what I put in there last time. Thank you for your suggestions in advance.