I'm looking for 13s, yet retain daily driver gas mileage. I've seen it done. I want to keep at least 15mpg (currently 21mpg avg with my 305TBI). Tell me what i need and what I should do, etc.

 

Buy a motorcycle!!!

 

You could swap an lt1 like I did. gas mileage is good and it's about 300 hp . I've added headers and I have done the swap for 2500$ canadian, everything included.I had a 305 tbi before, the swap is not that hard to do .

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89 Camaro RS Stock as a women with white panties
LT1 IS COMMING SOON.

 

Chapest way to obtain your goal is N20 and a cam.
The more expensive route is of course bump up the cubes "327, 350, 383, 400"
It all depends of what amount of $$$$ you want to speend. $$$$$$=fast
SSC

 

If you can do all of the work yourself then I would say a 383. I will have all of 2000 dollars in mine. Of course I pay labor only to the machine shop as I don't have that at home. The engine I am building was built and dynoed in one of my magazines at 450 horse and 470 ft/lbs. torque. Not bad for 2 grand.

 

l can run 13's in the 1/4 with a near stock 305. l've got runners, an exhaust, 150 HP nitrous shot and 3.73's with a few cooling mods like trans pan heat sink, synthetic gear lubes, and a rearend cover strenthener with heat sinks. l can still pretty easily get 15-17 MPG on the street and almost 20-24 mpg on the highway. the nice thing about nitrous is its there when you want it, and not when you don't. personally l think power adders are a really easy and good way to hit low strip numbers with high MPG. numbers. the downside to a blower is it's high initial cost, but the downside to nitrous is the high cost of keeping the frost in it.

good luck

 

jamseburn, could you give more inf. on your 383. thanks

 

Amen...i want info on this engine build as well.