if its a T engine you won't be able to go bigger than 2.4L the case is too weak. i'm rebuilding my 2.2L T engine right now and i'm putting a 2.4L crank and rods with 2.2L E p/c's and e cams. i'm staying with the zeniths cuz webers are very expensive.motor meister has some perfromance parts for zeniths. but when you change the crank and rods and whatnot you run into alot of things and it can get very expensive. i'm $1000 over what i'd thought it would cost me and its still not done
. you can't do much to these engines without spending alot. if you don't want to spend alot get a bursch muffler and leave the engine.if its a street car don't use "s" cams there to hot. the e cams are nice for the street. they have a good low to midrange power curve. and use 2.2L p/c's with the 2.4 crank you'll get 9.5:1 compression.(should run on premium) if you do this you'll get a nice quick street engine. if you have any questions about this setup email me
justincoolguy@hotmail.com