i need some seious help on improving my gas mileage. i recently placed a 600cfm holley and an edlebrock performer intake. I need something cheap and maybe something that can give me that throaty sound that all v8's should be looking for. legalness is not a concern but money is i have very very little to spare but i can barley afford gas now so any ideas will help. plus is there a spot in my exhaust where i can drill a whole to make a good solid noise and will that burn up my valves? or is that just a bad idea
well thanks i apprecaite the help

 

Do you still have the stock exhaust on there?
If so, i'd say start with replacing that with a 3" system and hi-flowing muffler.
(please don't flame me for this everybody)
I know that JC Whitney has an exhaust and muffler for about $134, supposed to bolt right on to F-bodys. That'll give it some throat and spare your bank (not to mention free up a little power)
Don't drill holes, that's a cheesy Mudstain trick. The two easiest-to-mod elements of your vehicle's sound is the cat, and the muffler.
If you want even more sound, gut the catalytic so long as emissions aren't a concern, but be ready to do a little tweaking on your engine from the loss of backpressure, which sometimes is a good thing anyway.

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DR Stevens
1984 Trans Am 305HO L69
sucks gas, hauls ***
1991 Firebird 305 LO3
for days when I need a/c

[This message has been edited by eightTfourTA (edited April 04, 2001).]

 

I would say go for a Flowmaster 80 series muffler. I would hollow out the cat too. I did both of these with the stock 2.5" pipe from the exhause manifold. I LOVE the way my car sounds. It gave the car a lot more ***** too.

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Jay

black 85 Z28, t-tops, 4bbl carb, flowmaster 80 series muffler w/ custom tips (hollowed out cat), edelbrock chrome air cleaner, Infinity 4" 2 way front speakers and Infinity 3 way 6x9s, Alpine CDA-7863 head unit. many more mods planned (holley carb 4160 and edelbrock performer intake coming very soon)