Okay, the TBI 305 is dying in my 91 RS. I want a new engine and don't want to rebuild the 305. I have two problems, NJ emmisions testing and budget. I'm on a tight budget and am going to have to cut corners somewhere. The car is ready for a 350+ engine so I was looking at the <a href="http://www.sdpc2000.com/cart.asp?action=prod_detail&catid=120&pid=115">330hp 350 from sdpc2000</a> since it's only $2100 flat no shipping or tax. My problem now is intake and passing emmisions. I still have the smog pump, SLP headers w/AIR, and A CAT. I would like to have a carb because of cost erformance ration. Back the the emmisions though, what would I need to do to pass? Will I pass with the cam that comes with the engine or will I need to change the cam and go EFI? Please I need a lot of ideas and experienced peeps opinions. Thanks and post any ideas. Oh yeah, I'd like to make that 330hp no less unless it's impossible.

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, Jon (91 RS too many mods to list)

 

Well that engine already has a pretty decent cam in it. I'd stay with that cam. It's got Vortec heads so that kinda limits your induction choices to TBI or Carb. I'd get a carb with an Edelbrock vortec intake. Get some good headers behind it and I'm sure you'll be in the 330HP range... no doubt about it. As far as emissions, it depends on your state. You might want to keep the TBI if they're **** about checking things under the hood. Even with TBI, that engine will make lots more power than your 305. You would also benefit from a custom chip.

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92 Z28 L98 350
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Ported and polished heads, ported stock TPI base, ported plenum, Comp Cams XR270HR-10 cam (lift .495/.502 duration 218/224 lobe separation 110), Edelbrock TES headers, LT4 valve springs, Crane AFPR, Flowmaster catback with LT1 style tips, MSD coil & wires...

"Take that auto, drop it in first, hold the brakes, stomp the gas and grin from ear to ear! :-)

 

One question for you... Are you still selling me that 486 laptop ?! lol I sent u an email an hour ago or so.

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92 Z28 L98 350
---------------
Ported and polished heads, ported stock TPI base, ported plenum, Comp Cams XR270HR-10 cam (lift .495/.502 duration 218/224 lobe separation 110), Edelbrock TES headers, LT4 valve springs, Crane AFPR, Flowmaster catback with LT1 style tips, MSD coil & wires...

"Take that auto, drop it in first, hold the brakes, stomp the gas and grin from ear to ear! :-)

 

JPrevost,

I would put the crate motor in with a carb and intake that will support EGR, and whatever your emmissions will check for. Then, have fun with it!!!

When emmissions approaches, bolt back on the TBI w/stock chip. It won't run too well, but you just want to pass emmissions, right? then , next day, pull TBI and out carb back on. Noone will be the wiser...