I was talking to a couple guys and not just Camaro onwers but other cars that have 305 and most of than have the same problem a smoke when start the engine but not when is running

I would like to know what is the commom thing that to this happen in this engines?

Another question....

I saw some performance chip for the 305 Tunned Port and I would like to know if make a difference like they say or is just something to make more weight on the car? akakaaka


Thank's

 

The blue smoke on start up is because of worn valve seals, not too difficult of a fix. Not just 305 specific. Parts are about $20. Search on how the it's done, many posts.

Off the shelf ships are junk, mostly. They may give you a little more in the butt o meter, basically just add more fuel maybe a bit more spark. But may actually make your car slower. The only proper way is to do a chip yourself and do datalogs. See the DIY Prom board. For the money spent you would be much better putting it towards equipment to burn your own chips or something like headers.