comarti4

What's the best/most affordable way to hit 300hp with an '87 305 TPI (don't say drop in a 350...later on down the line it will be). I already have intake, ignition, catback exhaust, airfoil, ported intake manifold. thermostat.

DJP87Z28

MONEY.......:hail:

TunedPort 335

75 shot. Seriously.

iroc4ever

You can then just transfer it over to the 350.
Headers will also transfer over..
And while it won't give you any more hp,gears are a great mod especially if you have the 2.73's like me

DJP87Z28

Still talking Money for that 300 HP......anyway you want to look at it.

iroc22

Heads and cam with a custom chip.

DJP87Z28

More ideas that......Cost Money are you getting the drift of this road to 300HP/305 yet.

bjankuski

Check my sig, I have 315 HP in a 305.

wyclefsirocz

stock-195hp
headers ad catback-225hp
air foil/pulleys/afpr-230hp
heads-265
cam-280hp
LT1 intake-300hp
tq conveter to go with all the new ower and some chip tuning should put u right at the 14.0 mark if not faster. thats exactly what i plan on doing

oh-
edelbrock heads
LT4 cam

comarti4

I take it lt4 intake and most cams all transfer to 350? Do heads transfer as well? I don't think my 150k engine would appreciate NOS.

bigals87z28

heads transfer, but will increase the compression ratio a ton over what was on the 350 before. Everything else can transfer: headers, cam, intake,.. knock sensor is gunna need to be changed and bigger injectors.. I plan a similar build up(as you ca see in the sig) and i hope to reach into the 13's by next year with suspension and new TC. good luck man 305 for life!(or till i have enuff for a 350)

jfreeman74

I would definitely think he would be running closer to the mid to low 13's with that kind of setup if I can run upper 13's to low 14's with my setup.

85TPI400

I totally agree!

comarti4

Is an LT1 intake going to give me any power gains over a ported stock 305 intake?

-Cory

PS-Apparently you can't say rycer in your sig.

ctandc

300 HP at the flywheel is reasonable with a 305 TPI, at least I think so. But 300HP ain't gonna do much for ya if you're running high gears ( low number like 2.73 ) , stock stall torque converter etc...


Basics..

Add some headers. These will work with any size small block you decide to drop in...

A true cold air induction setup is usually worth a few ponies as well, and cheap and easy to make.

Get some gear... This is the BIGGEST BANK FOR THE $ for ALL CARS saddled with 3.08 , 2.73 etc gears. This is the biggest SOTP difference you will feel. You'll never regret going to a lower gear.


Okay...you might when you start replacing tires, but hey that's how it goes.


After building up several cars, that's now my first mod...if a car is saddled with crappy highway gears, I start hunting for better ones. I'm a big fan of 3.42's, but that's just me and the TPI talking


You might consider a cam swap if you can score a cam at a reasonable cost, all depends on how long you plan on keeping the 305.


HTH

Jekyll & Hyde

I agree, I would change the gears out with something a little larger. If you have a manual, do something like 3.73, if you have a auto, I would stick around 3.42. There reason is that auto tranny will help put the torque down, but will be harder to drive in rain/snow/etc. with an auto and 3.73. Plus you will still save some gas.

Do all of the above listed mods, then do that 75 shot!

wyclefsirocz

i think with that kinda setuphe will be running 13.9's
and then with a 2400 stall conveter, LCA's, custom prom, transgo shift kit, billet servo, and good tires. a 13.50 run should be very feasible


thats what my plans are. also the heads and cam choice will make tenths depening on what you exactly pick out for your setup