he does not have a speed density. its maf. Its your computer, 94-95 computers have problems with idle surge once you make some modifications. Their was a artical in MM&FF about the idle problem they had after installing edelbrock heads,cam,intake on a 94 GT. Their solution was to swap out the computer for a 93 computer and no more idle surge. I'll dig up the artical tonight and post more info tomarrow. I have not had a problem with idle with my car. It does bonce a little bit but nothing like you mentioned. Scott BTW. The timming gun should light when the #1 spark plug wire fires with or with out the spout connected.
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1994 mustang gt
Zex 75-125 shot, BBK equel lentgh headers, off road x-pipe, flowmaster 2 chamber. bbk underdrives, FMS 3:73, MSD 6al ignition, BBK cold air induction, 70mm throttle body, C&L mass air, K&N cone. Pro 5.0.
96 corba rear buber, 1998 cobra wheels 17/8, BFG Comp TA ZR 275/40 rear,245/45 front
Best ET 13.24@105.5
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