Holland

I have a 91 RS 305 TBI auto w/ 700R4. It has a lot of miles and is running weak. I am trying to get a lot of horsepower but for cheap. I have an older 82 350 block and an even older 305 block. would a new block be better or rebuild the one i have. What kind of set up would be the best; as of heads, crank, cam, tbi, tpi to get the most power for cheap (I am a broke college student). And it needs to kick the **** out of my buddy's mustang, he is starting to brag alittle to much about his car. If you have any information let me know.

Josh 91RS

Im in the same position as you, except that i dont have anyone in particular i need to beat... anyways i have an 86 350 ill be building up, so im watching for some replys to this post as well. Any info let me know and ill do the same

Tas

get a single piece rear main seal roller camshaft block, 383 rebuild kit, edelbrock RPM intake, nice carb. cheap & fast. MPG?.. crap probably. its a start...


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-Tas
'89 Formula WS-6
[soon to be Performace Red =) ]

305, TBI, auto, 14x3 chrome flat based open element with K&N, functional Formula hood, cross-flow Flowmaster, '99z28 rear pipes and tips....

Super GRK_Taz World
EFI & Intake Options
AOL IM: superGRtaz
ICQ 82881207

BPA

First off u should set some goals as to what u want out of your car. Personally also being in the same situation as u and not Having unlimited funding I found a crate engine to be the best choice. Remeber that with any engine swap its not going to be that cheap unless u are going to basically try and do very similar to the stock setup using a 305. Aslo for me i had to make the choice very quickly so if u have time u might be able to form something that will work and will also fit your budget.
good luck

91Bird305

I like Tas's idea.

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Eric Natzke
91 Firebird 305 TBI

ASCD Ram Air Hood-3" custom exaust-Flowmaster 80 Series-No Cat-Edelbrock TES Headers (coated)-March Pulleys-TBI Spacer-K&N Open ELement-TransGo Shift Kit-B&M Supercooler 28,000 GVW-Hypertech Thermomaster-160 Stat-3:42 GM Gears-Auburn Posi Unit-Edlebrock Strut Tower Brace-MSD Superconducters-MSD Cap & Rotor-MSD Blaster Coil-Rapidfire Plugs-265/50/R15 Tires-Emmison's all Gone
http://members.aol.com/j007golden/91firebird.html
For info on certain parts or mods go to the site below
http://members.aol.com/j007golden/modeval.html

Holland

I wanted to use a Carb or a TPI but I cant find a cheap TPI. SO would running a Carb be better than the TBI? Well here goes a list of questions if anyone is listening. What do you have to do to switch the TBI to a Carb as of the wiring,computer,chip,etc. Also what is a good block to use instead of my older ones. Like the L98, ZZ4, LG4, the LT's, HO's and what ever else there is(might have got a few of them wrong). Which one would give me the best performance.

Holland

I forgot one. I have a lot of extra motor and was wondering if the 327 heads would work on the 305 or 350. And if would do any good.

Mark305TBI

L98 and ZZ4 use the same block (except the ZZ4 might be 4 bolt, I haven't been able to find out), a late model, 4" bore, roller provisions. This is what you want, punched out +.030, and with a 3.75" stroke crankshaft. The 327 heads will work insofar as they will bolt up, I'm not sure about their flow capabilities. You might wanna look into a set of aluminum L98's($769) or Fast Burns($1085), if you've got some cash laying around. It'll be easier to make big horsepower with a carb setup over TBI, but you'll get better gas mileage and driveability with the TBI setup...the choice is yours...

-Mark W.
'88 SC Camaro w/ 305 TBI

Holland

DOes anyone know anything on what is required to make the switch from TBI to Carb.

91Bird305

If u go over to the carb forum on this board and ask Jester (moderator) he will be able to tell u. He swapped TBI to Carb on his 305 and he would be able to tell u. You would have to modify ur cable bracket but the rest is just swapping parts/getting new ones. Give him a post over there and he would be able to tell ya. I belive ur doing the right thing. (I am a carb lover)

BTW: the ZZ4 is a 4 bolt



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Eric Natzke
91 Firebird 305 TBI

ASCD Ram Air Hood-3" custom exaust-Flowmaster 80 Series-No Cat-Edelbrock TES Headers (coated)-March Pulleys-TBI Spacer-K&N Open ELement-TransGo Shift Kit-B&M Supercooler 28,000 GVW-Hypertech Thermomaster-160 Stat-3:42 GM Gears-Auburn Posi Unit-Edlebrock Strut Tower Brace-MSD Superconducters-MSD Cap & Rotor-MSD Blaster Coil-Rapidfire Plugs-265/50/R15 Tires-Emmison's all Gone
http://members.aol.com/j007golden/91firebird.html
For info on certain parts or mods go to the site below
http://members.aol.com/j007golden/modeval.html

Holland

What carb would give me the best performace but still having gas milage (I have to drive this car from St. Louise to Mississippi every month) I dont mind scrificing some milage. Like the Holly double pumper, edelbrocks performer series, or whatever else there is on the market. Exactly what heads would be better than the other and at a cheap price. (I want this motor to make a fast *** mustang and an even faster camaro(LT1) look like my little sister going down the street with her tricycle) What Carb?

NJ SPEEDER

i would get the 350 block rebuilt with about 10.5 to 1 pistons. the cam choice to me would depend on what you think of hydro, solid, solid roller, hydro roller. the cheapest and easiest would be to get a regular hydro lifter cam like the block prolly already has in it, you can get a complete kit lifters for under $100 usually. you won't need a radical cam at all either, maybe something with around a .500 lift. for heads i would suggest the trick flows, they are about the best aluminum heads you can get for $1000.
if you are planning to mess with your buddy on the street i would use the tbi that you already have, it will build good torque, and that's what wins street races. properly prepared( i know that sounds scary but it's very cheap to do) i'm sure it can support enough hp to put any little pony in its stable.
just don't forget to work out the suspension while you are at it or all your power will be wasted.

hope this helps. any q' about what i said just email me.

lata
tim

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91 Camaro RS-LO3,Auto.
14.301 @ 94.39mph
The car is going street strip for next season. 13's here i come!!!!!
Edlebrock TES Headers, Cat Eliminator Pipe, Borla Adjustable Cat Back,Marche Pulleys, HyperTech Chip,Transgo Shift Kit,B&M Convertor(2000stall),Steve Spohn Rear Rig( all rod ends), Poly Front Bushings,Ported TB, 350 Injectors, Edlebrock Performer TBI Intake, Performer Heads, 1.6 Roller Tipped Rockers
http://www.mycar.net/mafb/registry/detail.cfm?id=299

jason west

The easiet way to switch to a carb is to replace intake manifold with 4brl intake with late model mounting holes, disconnect all tbi sensors, tuck away and hide wires, use a mallory ajustable fuel regulator with a return line on it! Select choice of carb, install older style HEI distributer with a hot wire. Leave computer in the car. Cooling fan should still work, if not run a toggle switch to it. This switch can be done easily and without a lot of money. ***leave fuel pump relay plugged up!

91Bird305

I heard that the Edelbrock Q-Jet makes good gas mileage and that u just have to tweak and tune it to performer just as good as the Holley's and Demon's. Thats just what I heard though. I would ask the carb guys for sure.

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Eric Natzke
91 Firebird 305 TBI

ASCD Ram Air Hood-3" custom exaust-Flowmaster 80 Series-No Cat-Edelbrock TES Headers (coated)-March Pulleys-TBI Spacer-K&N Open ELement-TransGo Shift Kit-B&M Supercooler 28,000 GVW-Hypertech Thermomaster-160 Stat-3:42 GM Gears-Auburn Posi Unit-Edlebrock Strut Tower Brace-MSD Superconducters-MSD Cap & Rotor-MSD Blaster Coil-Rapidfire Plugs-265/50/R15 Tires-Emmison's all Gone-Free TBI mods
http://members.aol.com/j007golden/91firebird.html
For info on certain parts or mods go to the site below
http://members.aol.com/j007golden/modeval.html