Stumbles at high rpm then loops

[AJ]

what does fuel cut feel like

Like eating the steering wheel.

[driftn1g]

more discriptive???

as bad as an IC pipe blown off

[HiImBrian]

fuel cut is basically your car coughing and jerking you forward. Eating the stearing wheel isn't a horrible description. You'll know it when you get it. You should probably get some new plugs. Maybe some BR7ES...I've got a set for you for $15

[93TalonES_NWS]

I wear a mouth guard to protect myself from fuel cutoff

[driftn1g]

i got plugs.. im going to pull the old ones out and check em..

but like i said should i be tuning with lo or hi?

[driftn1g]

btw what are 450cc good till

[Bunta]

I'm know pro at this stuff but maybe any information can help you. I have my safc2 programmed to road race engineering settings. I'm just waiting on my fmic to get in then i'm going to set up an appointment with DB or Map to get it tuned.

http://roadraceengineering.com/newafcsetting.htm

A list of what you've got on your car would really help.

[driftn1g]

stock 14b..
fmic..
i want it tuned at least 18psi
safc2
450cc
255lph

[stikx]

I wear a mouth guard to protect myself from fuel cutoff
LOL! Anyways fuel cut sounds similar to an IC pipe blowing off but feels like IC pipe On and oFF. Picture a little midget pulling the IC pipe off then putting it back on constantly for couple hundred rpm or however long your fuel is.

Oh yea, check your plugs, sounds like spark blow out since it's only in the upper rpms (WOT?).