MilehighBird

iTrader: (1)

Check my sig.The car is running ok but now that I have a modified exhaust installed are there any ajdustments to the carb that I should do?Different hangers?Secondaries?Keep in mind I'm at 5000ft.What about timming adjustments?Thanks.

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1987 Firebird Formula LG4,700R4,WS6,2.73 open rear
Current Mods:SLP coated 1 5/8 in. headers, Flowmaster 3in. American Thunder cat-back,3in. Catco converter,L69 dual snorkel,K&N filter,SSM sub-frames roof console,Pioneer 1.5din cd player,BostonAccoustics 4x6plates,eclipse 6x9's

five7kid

iTrader: (14)

You can typically get away with a few more degrees advance up here than at sea level. I've got mine at 7 degrees right now (9.5:1 CR), and can run our fine 85 octane regular with no problems. My cam may be helping some, though. I might try even more advance to see what that does. Having the advance at the point where the engine runs the best can have negative effects on emissions, so keep that in mind when the time comes.

Secondary rods & hanger are really a tuning exercise. I'm running DR rods on a B hanger and it's doing fine. But again, that's my setup, and yours could responds quite differently.

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82 Berlinetta, orig V-6 car, now w/86 LG4/TH700R4, 2300 stall TC. Ported World 305 heads, Crane PowerMax 2050 cam. ZZ3/4 intake, oil pump, pan & baffle. Accel HEI SuperCoil & module. Hooker 2055 headers, 3" Catco cat & 3" catback w/dual-opposite Flowmaster 80. 2.93 limited slip. Spohn SFCs waiting to be installed. AMSOIL syn lubes bumper-to-bumper. Daily year-round driver. Best ET, speed TBD...
57 Bel Air, my 1st car. '66 396, 9.7:1 forged TRWs, Weiand Action+, Holley 750VS w/4150 conversion, GK 270 cam, Magnum rockers, Jacobs Omnipack, 1-3/4" Hedders & 3" Warlocks, TH400 w/TCI Sat Night Special conv & Trans-Scat shift kit, MegaShifter, 3.08 8.2" 10-bolt w/Powertrax, AMSOIL syn lubes bumper-to-bumper. Idles smooth @ 700 RPM in D. Best 15.02/95.06 @ 5800' Bandimere (corrected 13.93/102.4 @ sea level).