Quote:
Originally Posted by blackedoutss
a port and polish def sounds like a good idea, but since i'll be doing all the work myself i might just polish them out myself and leave it at that
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http://www.advancedinduction.com/AiProductsGMLS3.html
http://www.lingenfelter.com/store/l92cnc-pair.html
tho....
after thinking about it a little more and doing some more research....
DO NOT WORRY ABOUT PORTING YOUR HEADS!!!!
why? you ask....
the stock heads flow 300+ cc stock, better than LPE stage III heads for the LS2. Only thing I have read is that exhaust side could use a cleanup, not much to do on the intake side.
I have been told that it flows very well stock and is not going to be the performance limiter until 535-550 RWHP NA. The air filter intake and throttle body are the two main intake bottlenecks and the exhaust manifolds and cats are the bottlenecks on the exhaust side.