Looking to replace my worn out 305tbi. Would like to replace it with a 350 engine and still keep the TBI set up. Would like the setup to have 300-350 HP. I need TGO's member to help me build an engine. Any advise would be appreciated. :hail:

 

having not dealt with the smog laws and inspections it'd be hard for me to guess at it. Rb would be a good source of info since he's done swaps and lived in cali.

 

Either rebuild the 305 or buy a 350 out of the same year or newer chevy van, caprice, truck, suburban, etc. If you want to be smog compliant you must use only carb approved parts. Even though somethings such as the cam, pistons, etc they don't check. I would say all external parts need to be carb approved. Don't think you can squeeze a 250*@.050 cam in there just because they can't see it. You will also have to retain the TBI system although you can get an edelbrock intake and Holley TBI

 

you might want to talk to rich92rs350. he swapped in a 300 horse 350.

here's a thread you may find useful
https://www.thirdgen.org/techbb2/sho...hreadid=175033

 

Not worried about smog laws, car has Michigan plates. I really would like to keep my TBI (willing to upgrade to Holley 670 or GM's 454 TBI) due to the simplicity of the system vice a TPI. Iwas thinking of getting a shortblock than add a LT1 cam with Vortec heads. I read the rich92rs350 thread. Thanks for the info.

Found this on Ebay: http://cgi.ebay.com/ebaymotors/ws/eB...2459188933What would the compression be if I used l31 Vortec heads?