just get a cold air intake and if you have the money do headers and full exhaust will be the best bang for your buck otherwise get it tuned

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if you decide to go c.a.i. do the whole thing if you search you can find a bigger bore throttle body then use a throttle body spacer then a full c.a.i like was said before k&n or injen then when you go exhaust its a little costly but find a good engine machinist and get your exhaust port matched to some shorty headers followed by a full exhaust with high flow catalatyic converters those both will give you good perfomance to bring the beast alive and then when you've rubbed enough cash together geta programmer that will tune it all together nicely if that is not enough to sooth your hp needs then of course doing a v-8 swap would be the more practical choice in adding more power whether you do a 305,350 or there is a sweet conversion kit out to do a ls motor swap which if you do the ls swap its 500+ hp outta the box but then you will need a programmer to tune it all together but the kit to do it has all the piggy backs for your wiring harness so you can plug the motor in and go but the kit also has the v-8 motor mounts and i believe it either bolts directly to the tranni or it comes with a tranni adapter kit but hey if thats what you want then go to the trucks website from the speed channel they did it on a s-series under 10,000 bucks but then they also did wheels lowering it painting it and a whole bunch of other stuff.

 

oops

 

Euro, do you happen to have any pix of this? I have an AirAid in mine, but I don't have a heat shield. I was thinking of building my own. I saw another poster's how-to, but I'm curious about other ideas.

Raph

 

they actually did that on i think horsepower tv or something, it look like a simple weekend project, i forget howmuch motor was i think 2000-5000

bu ti was wonderin i saw a tranny cooling kit at vip, i could eaily find a place to put the small raditor and fan, but was wondering if it would do anything, power wise


wow i didnt read that long post, i didn think it was gonna be that much, i gues sill take aloan and get my friends m3 for 17,000 instead, why waste 10k on that motor (in my case anyways) when i could get a stupidly fast car for about 10k more and just have a load payment of like 200 a month instead? lol

 

check ebay.com for:
memcal chip usually on the cheap side around 150bucksand adds about 8% hp gaim which is like 15 with these engines oh and they can improve gas mileage i picked up and extra 3 mpg's

u can usually get a zr2 c.a.i. for bout 25 bucks and it only takes a little finese to get it to fit anymodel blazer

bigger throttle bodies run about 75-120 bucks depending on size

and buyin brodix heads on ebay later for 150-500 bucks wouldnt be a bad idea to port and polish and if ur a beginner i would let a professional handle this cuz if not matched to the intake manifold properly it may be a power loss instead of a power gain

also a single plane intake wouldnt be a bad idea prolly around 100 -200 bucks

also havents really looked on ebay to much for these but also not bad ideas

roller rockers
headers
bigger injectors if u tbi if u have a cpi then stay away from injector/injectors unless u want to give up your first born(im almost serious)
aem fuel pressure regulators
high flow fuel pump
and if u just wanna go fast quicker try a b&m shift kit if u got a 700r4 tranny 40-70 bucks should get it if u got a 4l60e u might be looking at a little higher price
and if u dont like a/c your condenser can be easily converted to an oil cooler (this keeps engine a little cooler allows motor to make more power)
also e-fans arent a bad idea and both taurus and intrepid fans and also its better to use to small fans over one bigger fan moves more air faster aund u no longer have a huge fan to turn so also another hp gain


i hope this was helpful.....oh and watch the seller's feedback % stay away from low percents
and i would check craigslist.com sumtimes i find good deals for under 100 bucks

 

i dont really see how an e-fan helps that much though... its gets its power from the batt which comes from the alt which comes from the engine. the stock fan gets its power straight from the engine. it still has to get power from somewhere


other than that, all good ideas although i havent ever heard anything about that chip before

 

Lots of the suggestions above by mustangblazerking do not apply to the CPI and newer SCFI motors. The older carb'd and TBI motors are a lot easier to use a lot of these suggestions on.

Heads will always help and should be accompanied by a cam, exhaust, and associated items to take full advantage. There are a few aftermarket cams for the 4.3L engine that can be used for a decent bump in HP, but not a lot of people can handle a cam swap on their own.

E-fans may be an upgrade from an early engine driven fan, but the modern fans only use power when radiator temps warrant it. On a cold startup with a properly working fan clutch, you can actually stop the fan with your hand at idle. Its not until the thermo-clutch sees higher temperatures that it locks up and pulls air through the radiator. When unlocked, it is using next to nothing for engine power.

 

you could do what im doing for 260 getting a dual ezxhaust and hopefully about 10-20 hp, or you clould do what ricers do BIG MO FO sticker, (each adds up to 10 HP!!!!).....

 

i wouldntexpect to get 20hp from an exhaust upgrade. 10 might even be a little high. maybe if that includes a larger y-pipe and headers (i doubt it)