camarodrew

i have a 91 rs stock 350 and 700r4 and i was wandering if 300 hp is an easy number considering that i can only get a cam and intak carb/throttle body(havent decided yet) and wich would be better carb or tbi i could also get a tune but i really need to know if this is a fair number.

calebzman

iTrader: (3)

Depends on where the 300hp is measured. The '91 350 already made 245hp to the crank, so with a good cam, intake, and tune, you should easily get 300hp to the crank. Whether you go carb or tbi is up to you and what you would rather tune.

camarodrew

thanks thats all i needed to know

Gladstoneiroc

iTrader: (1)

Well you can't say that the 350 made 245hp because no rs came factory with a 350. So technically you could have anywhere from 145 to 250 hp from a factory 350 motor. But yes cam, intake, slight head work, and tuning can get you 300 hp, even if you choose carb, tbi, tpi, etc.

D's89IROCZ

for you , I would go carbed . Just for the fact it will be cheaper. But if you have emmissions I would keep the TBI .

mw66nova

iTrader: (13)

91 RS with a 350 huh? is it a B4C? if not and it is infact stock, it's only a 305 and you gotta ways to go till 300hp...

camarodrew

oh i forgot to saythat the 305 was retired long ago and the 350 came out of a 90 chevy van and thanks for the relies

mw66nova

iTrader: (13)

good to know...the heads on that thing if they are the stock heads SUCK! put on some better heads and a hotter cam and you'll be close to there.

Gladstoneiroc

iTrader: (1)

That 350 is rated at 200 fwhp, so you are looking for another 100.

camarodrew

mw66nova do you have any heads to suggest for pretty cheap

Fast355

iTrader: (2)

Its actually 215HP/315 TQ installed in a Van chassis. Trucks are 200-210HP/300-310TQ.

Expect that number to drop to 185/290 installed with all the L03 garbage exhaust, air cleaner, too small injectors, etc, on it.

The stock heads will let you make 300 FWHP pretty easily.

The stock cam won't.

Replace the exhaust system from the head ports all the way back and you are getting somewhere.

mw66nova

iTrader: (13)

vortecs even in stock form should do it. 083 heads in stock form will do it. 113 heads in stock form will do it. 300FWHP is easy. but you'll definitely need more cam. even something like the lt4 hot cam would work to get your goal...

do you already have all the essentials?
-headers and good y-pipe (something like the hooker 2055's)
-good high flowing 3" catback
-high flow cat or test pipe
-good flowing intake manifold and better air filter assembly (some sort of dual snorkel or something)

camarodrew

thanks and im about oto go get all that suff now