I did a search for info on the Holley Stealth Ram and saw that there are mixed views about it. I have a 350 bored 0.30 over w/ forged pistons, rods, crank, total seal rings. The heads are stock L98's ported, polished, and have a 3-angle valve job w/ stainless valves. I have all the free mods done. I also am putting full roller rockers and a 6AL ignition on it soon. My question is is it worth it for me to get the StealthRam setup? What horespower gains am I looking at? What are the disadvantages to it? And will it fit under the stock '91 Z hood? Any help would be much appreciated.

 

Almost forgot, I am also running a ZZ4 cam.

 

Im running a stealth ram now, you can expect to loss about 30ft lbs of torque at just off idle get slowly back to stock hp and torque by about 4000rpm and above that rpm level gain hp rapidly too about 75-80hp more than stock by the time you hit 6000rpm and if your cam and engine can handle it your power just keeps going up from there! Ill never swap back, my cars much faster now and the slight loss of off idle torque is acctually a benefit on my car as I get just a little less wheel spin on launch but much more high rpm power (now keep in mind my engine is not stock and is a full roller 383 but DOUG FLYNN at HOLLEY got much the same result (a 62hp gain at about 5500rpm over a stock TPI system) on a stock camaro so your results should be similar

 

grumpyvette, have you done any PROM tuning or is this with the stock PROM?

 

if yall get chevy high performance they have a artice in there with them using the stealth ram and the new NOSzzle kit on a 406 and it makes some awsome power. read up on it and u will see how great the stealth ram is.

 

cobrakiller1989
Ive done some chip/prom changes

 

What issue is the article about the Stelath Ram intake and NOS nozzle kit? Looked at July, couldn't find it.