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09-17-2001, 01:13 PM | #1 |
Registered Member
Join Date: Aug 2001
Location: Miami, Fl, USA
Posts: 69
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Poor Performance, pls help
Hey guys, Anyone know what could be causing my 5.0 to bog down while reving it? Here are the specs: 1985 GT w/1987 roller motor, Weiand Stealth, Mallory Hi Fire Ignition(new), New wires, spark plugs, Rebuild Dist. New cap rotor. Hi-Perf Cam. Tried both a used Holley 650, vac sec, and an Elderbrock carb w/similar results. The car is using the factory in tank fuel pump(used to have CFI), Holley fuel pre regulator. Set to 5-6pounds.
Hooker full length headers. No mufflers yet. It seems to idle fine, just when you rev it quickly, it seems to bog down. Any ideas? Thanks.... |
09-20-2001, 03:04 PM | #2 |
Registered Member
Join Date: Mar 1999
Location: Sanford NC USA
Posts: 155
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Maybe Timing? to much or to little of timing could cause such a condition. maybe wrong plug gap, are you using a 86 model distributor? or what vacume advance working properly?
------------------ 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 |
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