ON my way home from Ocean City,MD today I was cruising and i stepped on it in 5th gear. Well the RPMS did not move! It felt like they were being redlined or something. They rose very very slowly.

I recently made cold air induction, ported the plenum, and installed an AFPR. I'm running about 49psi at WOT. Why would the car sputter like that? Am I running rich? I can hear the sputtering in lower gears too..just not as drastic. Other people in the car have noticed it. Maybe my injectors are getting too much fuel?

thanks guys.

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'92 Formula
305 TPI
Mods: SLP catback,SLP air foil,ported plenum,Crane AFPR (49psi),MSD6AL,homemade cold air,K&Ns,3:73s

[This message has been edited by theformula (edited October 14, 2000).]

 

Try to lower your PSI a little ? That seems a little high...

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92 Z28 L98 350
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Ported and polished heads, ported stock TPI base, ported plenum, Comp Cams XR270HR-10 cam (lift .495/.502 duration 218/224 lobe separation 110), Edelbrock TES headers, LT4 valve springs, Crane AFPR, Flowmaster catback with LT1 style tips, MSD coil & wires...

"Take that auto, drop it in first, hold the brakes, stomp the gas and grin from ear to ear! :-)

 

49 psi on a pretty much stock 305 is overkill. i wouldnt of even got a afpr for a 305.

 

If you are running lean ,you are running lean! Regardless of displacement. Once i get my dash mounted digital air/fuel ratio moniter, and digital fuel pressure gauge I will be set to go.

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'92 Formula
305 TPI
Mods: SLP catback,SLP air foil,ported plenum,Crane AFPR (49psi),MSD6AL,homemade cold air,K&Ns,3:73s