Hello Everyone. What can I put In my 91 305 Z28 camero that will give my more Horsepower without Supercharing it. Or dropping another enigne into it or putting Nitrous Express in it.

 

This wont add hp but it may give you some lost hp back. Do a complete tune up plugs, wires, cap, rotor, fuel filter, check for vaccum leaks. Then to add HP I would say Exhaust. Headers to high flow cat or no cat to mandrel bent 3" pipe to muffler. Flowmaster makes a nice one or DynoMax.

I guess before I go farther what engine do you have? TBI, TPI? Is it an Auto or Manual? Just fill us in on more about the car and we can help you out more.

 

If I were starting from stock this is what I would do:
1. Headers
2. High flow cat
3. 3" cat back

That will open the car up alot.

4. semi siemesed runners
5. new base, TPIS or edelbrock (pretty much the same thing, edelbrock casts the TPIS pieces).

That should give you a good start and will transfer to a 350 if you decide to swap the 305 out.

 

Look in my sig, it has the mods & times.
And dont spell camaro like that here again

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91 B4C 305 TPI - SOON TO BE 383
TREMEC 5-SP, STOCK 1-BOLT REAREAND w/342 GEARS, K&N, AIRFOIL
EDELBROCK HEADERS, DUAL CAT TO HOMEMADE Y-PIPE & 3.5" SINGLE PIPE W/ FLOWMASTER, CRANK PULLEY, MSD, FUEL PRESS REG, COWL HOOD, WELD WHEELS
14.1@ 98MPH
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OTHER RIDE
67 CAMARO - STREET CAR, BIG BLOCK, PUMP GAS
350TH w/ATI 10", 12-BOLT w/373 GEARS
10.94@124.13 ON MOTOR - ET-STREETs w/MUFFLERS