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#17 |
Senior Member
Join Date: Mar 2002
Location: NS CANADA
Posts: 888
Likes: 1,600
Liked 387 Times in 151 Posts
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The way I read it is, if I run stock heads my hp is “X”. If I run aftermarket head pn1234 than my hp is “X” + 5. The reason I am adding 5(or however much) hp is because that is what these heads are deemed to be worth with their ports/valves/chambers/etc.
I think the difference from stock is acknowledged in the increase of hp. What sbf has been approved for stock? Gt40p heads at +5hp? I’ll go for that thank you very much! Lol. |
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