Yellow Bullet Forums banner

1 - 9 of 9 Posts

·
Registered
Joined
·
611 Posts
Discussion Starter #1
Got a 540-BBC with SRP I believe 10.5 pump gas pistons and I am using the GM 990 square port heads anyone have knowledge of what plugs and heat range I should start with ? Thanks
 

·
F.T.W. KILL EM ALL
Joined
·
10,841 Posts
NGK's are a Killer Plug. N/A you can probably start out with a set of R5671A-8's or possibly 7's. The 7's may be just a little to hot. Lets see what other's think. Good Luck :)
 

·
Registered
Joined
·
1,097 Posts
1 - 9 of 9 Posts
Top