Hi

I have a 1992 RS 305 TBI.So far I have got Edelbrock headers and Flowmaster (2?) chamber exhaust.Can anybody tell me some good power building mods to get this engine up to 300-315hp?It's at about 180-190 now I think.Try to keep it relatively simple please, I don't know too much about engines and all the work would be done by my speed shop.Thanks

 

or do you think it would just be cheaper to put in an LT1 or LS1?

 

try nos

 

Find an LT1 with wiring harness out of a junkyard....less riskier than playing with NOS, an probably the overall cheapest way to get that much HP

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92 Camaro RS, LO3, 5-spd, T-tops

Performance:
K&N Open Air Filter, Edelbrock performer TBI intake, Fastchip Prom, Timing +4 degrees, Centerforce clutch, Xact 8mm wires, SLP 1 3/4" Headers (coated), Flowmaster Catback Exhaust, Z28 Grille w/aftmkt fog lamps, MacEwen white-face guages
Electronics:
Alpine 8030 Alarm System, Valentine One Radar Detector (How did I ever drive without one?), Pioneer DEH 7450 Head Unit w/6-pack CD changer, Pioneer DEQ 7600 Sound Processor, 2 Kenwood KAC-846 Amps powering 2 12" Pro Red subs, 2 Pioneer 6x9 and 2 MTX 4x6 speakers.
NEXT UP: TBI mods, 3.42 gears w/Torsen posi

 

GM sells a 330 hp 350 for under $2000

 

That kind of power is possible with your car. I'd start with some WP S/R Torquer 305s, an Edelbrock Performer intake for a carb, get the Holley 2" TBI unit and their adapter plate so you can put that 2" TBI onto the carb manifold, and a nice cam and you'll see 300+ HP. A custom chip will be in order, and you'll have to open up the exhaust like you're planning on doing.

Also, Hot Rod put an Edelbrock intake with an adapter for the stock TBI, L98 Vette heads, a cam, headers, and a 3" cat and cat-back and their car made 285hp at the rear wheels. That's not bad considering they were using the stock TBI unit. They did however have a custom chip and bigger injectors.

Either way you go, parts alone just for the top end will run you around $2000 if not more.

Hope this helps,

Jason

 

I just did my whole 350 swap for $3000 but I did it, not a speed shot. Engine swaps are NOT as hard as they are made out to be. TBI is actually one of the easiest to swap, just make sure you intake system is all in check.

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, Jon (350 TBI!)
91 Red My website

 

Go here if you're looking to TBI mods: http://www.goingfaster.com/spo/praisetbi.html and http://www.goingfaster.com/spo/mods.html