Re: Sullivan intake..
Did you do a cam change as well?
I run a ported sully on mine with an HPP upper.
Ported short runner combo made 473hp with peak hp at 6800. The sulley combo makes right at 500 with larger cams with pk hp at 7800. It lost about 25lb/ft of tq. I like the sully combo better at the track but not as fun on the street.
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