Hesitation?
 

My car has sort of a hesitation in it around 2000 to 3000 rpm. Someone told me that 30 lb injectors were too big so I took off my buddies 24# and his Pro-M 75mm and tried it. It would backfire through the intake when it was cold with his stuff on it. It feels like there is something restricting my car. Do I need to get a Programable ignition system for my car to eliminate this problem?

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89 LX Coupe
306, 10:1 compression, Holley Heads, Intake, and Cam package, 70 mm Throttle body and Mass Air, 30 lb injectors, 255 lph fuel pump, 1 5/8" full length headers, Flowmaster 2 1/2" American Thunder Cat back system, Centerforce dual friction clutch, 4.10 gears
50-175 hp Nitrous Works kit, 5" Auto Meter Shift Light

Sorry need a bit more info than you provided.

Does it feel like a misfire, is it just lazy then wake up, does it pull then fall on it's face, does it feel like it's loading up on fuel...ect ect...

Let me know
laters
Mike

my car is doing about the same thing.. figure it out cause it is driving me crazy.. I have 24lb injectors and a 75 bullet.. it pops when its cold now but used to all the damn time.. it just feels lazy i havnt been able to really rip on it yet i only have 350 miles.. let me know I am stumped thanx

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SOLD THE 87GT, .. GT40, 70mmTB, 75mmBullet, 24lbinjectors, cold air induction, Edelbrok 6025 Rpm's, Inch phonolic spacer, tall FMSvalve covers, an SFI balancer, Canton 7quart, the shortblock... Lunati 51025 (224/232 .535/. 544 @112 deg) Ross lightweight pistons (10:1) Eagle H-Beams, Total Seal plasma Moly Rings, Clevite bearings, ARP throughout, FMS main Girdle&Studs, Forged Crank, of course HV-OilPump and hardened FMS shaft, Dual Friction centerforce, T5, and 4.10's Longtubes and 2.25 tail pi

Well my car acts just like the cam is loping, but it shouldn't be doing that at that rpm. Thought it was loading up on fuel so I tried the 24# injectors. It just feels lazy until you get to a certain rpm then you can feel it kick in. Something just isn't right. I have the upper intake off it now b/c I am not putting it back together until I get a plenum spacer for it. Would an MSD 6AL ignition system help?

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89 LX Coupe
306, 10:1 compression, Holley Heads, Intake, and Cam package, 70 mm Throttle body and Mass Air, 30 lb injectors, 255 lph fuel pump, 1 5/8" full length headers, Flowmaster 2 1/2" American Thunder Cat back system, Centerforce dual friction clutch, 4.10 gears
50-175 hp Nitrous Works kit, 5" Auto Meter Shift Light