hey i gotta stock L69 305 in my ta and it was sitting in a garage for 3 years b4 i got it and i havent done anything to the motor besides an oil change and new.....is there anything i could do with the carb or timing or anything that would make it run faster....i went to the drag strip last wednesday and my best run was 15.997@86.04mph
and my worst was 16.456@83.96mph.....on the last couple runs my tranny was makin noises and i later found out it was a broken tranny mount....but anyway...any advice would b greatly appreciated

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84TA T-tops L-69 305HO TH-700R4 stock 190hp and 240 ft-lbs.
sony xplod cd player,2 12" profile "baja" subs, and a 250 watt MTX amp
$350 for the subs,amp, and box...rattles my car very good!

 

l69s are pretty much optimized. They pushed compression and cam timing as much as they could for the 305. I suggest putting a 373 gear in the back and preparing for the old 350 swap

 

Well...i hate to sound like a....umm...well like i'm playing favoritism. If you wish to tweak your motor, goto the DIY board, read Traxion's tech article on prom tuneing..and start from there. It would be alot easier for you with a basically stock motor. Then as you add different modifications you can tweak it a little more and get the added benefit.

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89 IROC-Z 350 TPI

-Flowmaster Catback
-Performance Resource Chip
-700R4 (Rebuilt) Too much done to actually list
-K&N Airfilters
-Ported Plenum
-2.77 Gears (not much to brag about but eh, its there)
-MSD 8.5 mm plug wires
-Gutted cat
-!AIR
-Gutted Air Boxes

 

Tweeked my L69 with mods that would transfer
to a 350 that I am presently swapping in.
The L69 is a great motor you should be running a whole second faster then you are
now. See signature for a good place to start.

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Tom K.
84 Z-28 M5 305 L69 HO
pulleys,coil,3:73(stock)
Jet chip, fan switch,
Al dshaft,1.6 rockers,
LCAs and brackets,BFG DRs
14.20 @ 96.74 2.02 60ft

 

good lord!!!
14.2!!! my bros gotta 355 in his 73 nova and his best time was a 14.6
do you shift yours ya know like 1-2-D
or what???

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84TA T-tops L-69 305HO TH-700R4 stock 190hp and 240 ft-lbs.
sony xplod cd player,2 12" profile "baja" subs, and a 250 watt MTX amp
$350 for the subs,amp, and box...rattles my car very good!

 

i myself donot have a l69, but one thing i have learned is read almost every article on this board, you wil learn alot about how the cars work and what mods and things that you can tweak will actually work. good luck

-Stell

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1988 Pontiac Trans Am. 305 TPI Mods=MSD 6A+Coil+Wires, K & N, SLP AirFoil,180 Thermostat, Cold Air, Hooker Aerochamber Catback

1974 Dodge Charger , Currently restoring but has a 318 with Crane Cam, Carter AFB 4BBl Carb sitting on a Weiand Stealth Intake

RIP 1988 IROC-Z
http://stell15790.tripod.com/cars.htm

 

just tryin to see if a pic loaded on my signature


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[img]http://www.zing.com/mypictures/inbox/view.html?id=4268694202&url=http%3A%2F%2Fwww.zing.com%2Fpicture%2Fp0e5820f7fc1a94805ba5d7e72375a477%2Ffe6f1aba.jpg&caption=Me%20and%20my%20TA%21[img]

84TA T-tops L-69 305HO TH-700R4 stock 190hp and 240 ft-lbs.
sony xplod cd player,2 12" profile "baja" subs, and a 250 watt MTX amp
$350 for the subs,amp, and box...rattles my car very good!