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Old Nov 23, 2004 | 07:14 PM
  #1  
arlockstedt's Avatar
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From: Arlington, Tx
Car: 89 Firebird Formula 350 WS6
Engine: 350
Transmission: 700R4
Need Help Please Help Help

car won't rev past 2500rpm. and when it gets up there it sounds bad and pops a lot. Timing is right on. I double check the lifters and rockers. yes this is a new motor. I don't have a rev limiter. I do have a custom burned chip in it tuned for the car. Any body have any idea or clues? Here is my setup.

97 4-bolt 350 with roller cam setup. (bored over 0.030) complete ARP bolt kit. Blue printed and Balenced and decked 9.000
ARP studs and Diamond Stripper windage tray for the mains
Eagle 4340 forged, light-weight crankshaft 0.010 and large journal
Eagle ESP forged rods (lightweight) 5.7 H-beam with arp bolts
WISECO ProTrue pistons ( 10.3 to 1 cr with 64cc heads and a 9.000" deck )
Edelbrock hydraulic roller cam ( dur@.050 234/238 lift (1.6rr) .575/.585 lobe seperation 112* Intake centerline 107*)
CompCams Pro Magnum 1.6 roller rockers
CompCams Pro Magnum Roller Lifters
Edelbrock Victor Jr heads 64cc 2.08 and 1.60 valves Custom Dual Springs and Perfesionally CNC ported all the way through and ARP studed to the block.
Holley Stealth Ram Intake w/ afpr -- fully CNC ported and port match with heads
58mm Throttle Body
30lb fms injectors
Full MSD setup
Hooker SuperComp Headers Long Tubes (dual exhaust with dual electric cut outs)
Underdrive pullies
Edelbrock aluminum high flow water pump (might install electric water pump i have)


Race built 700r4 with 2400-2700 stall
Borg Warner 9bolt posi with 3.70 gears

Please help with any info or thoughts. Thanks
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Old Nov 23, 2004 | 07:24 PM
  #2  
arlockstedt's Avatar
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From: Arlington, Tx
Car: 89 Firebird Formula 350 WS6
Engine: 350
Transmission: 700R4
forgot to mention that the motors over heats pretty quick.
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Old Nov 23, 2004 | 07:28 PM
  #3  
ridecamro's Avatar
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From: MN
Car: 91 rs
Engine: 250
Transmission: 700r4
Axle/Gears: stock??
what do you have for exaust... is your cat cloged... other wise what else is it doing... runing rich... lean... smoking.. kinda hard to tell form your info
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Old Nov 23, 2004 | 07:44 PM
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From: E.B.F. TN
Car: Tree Huggers
Engine: Do Not
Transmission: Appreciate Me.
How'd they tune the chip if it won't rev past 2500? :shrug:

Anyway, it does sound like it could be timing, regardless of your convictions. Have you tested the igniton components yet? Fuel pressure? Double checked wire routing? Have you brought it to temp yet? What are the symptoms then? Any codes? Give up some more info and it will be easier.
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Old Nov 23, 2004 | 08:02 PM
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arlockstedt's Avatar
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From: Arlington, Tx
Car: 89 Firebird Formula 350 WS6
Engine: 350
Transmission: 700R4
EFI mike did a custom e prom from the specs i gave him. I tried the stock chip and another custom one i had for my last mild motor. All the same. Timing isn't the problem. The firing order has been double checked.the only thing i don't know 100% on is the distributor. Bought it from JMattlock88 and he only ran it 150miles give or take a few. Everything else should be fine. I have brought it to temp......i said it tends to get hot quick. codes are 14,34 (i think), and 42.
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Old Nov 23, 2004 | 08:03 PM
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From: Arlington, Tx
Car: 89 Firebird Formula 350 WS6
Engine: 350
Transmission: 700R4
exhaust is open long tube hooker supercomps
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Old Nov 23, 2004 | 08:05 PM
  #7  
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From: Valley of the Sun
Car: 82 Z28
Engine: Al LT1 headed LG4 305
Transmission: TH350
Axle/Gears: 3.73 posi with spacer
How about your sparkplug wires, are they on the right plugs, are they arcing?
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Old Nov 23, 2004 | 10:02 PM
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From: Arlington, Tx
Car: 89 Firebird Formula 350 WS6
Engine: 350
Transmission: 700R4
the wires are the msd 8.5mm super conductors and the are in a billet wire looms over the headers (as seen on most hot rods). They are on the right plugs. I'm so stumped. Someone mentioned that it could be one or more of the injectors that is not working or not shooting fuel?!?!?!?!?!?!? They were sitting for about 3months before being fired again. please help. need to get my daily driver back up on the road again!

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