Your #'s are normal for what you've got.
Patrick knows what he is doing but he won't throw a magic set of pistons/rings into our car.Some car's dyno alot higher than others.
Now,if you want to spend $$ for more gain,here ya go.
SLP headers -dump the equal length garbage and buy 1 7/8 Kooks or ARH. Yes,SLP's do loose power.
FAST intake, don't waste time or $$ on the 85mm TB stuff.
Heads have to be atleast 60cc chambers.
There's a start for ya. It gets expensive chasing those dyno $'s.
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