I have a 305TBI/700r4 whith following mods,Stage 2 chip,pulleys,headers.3"catback,y-pipe,k&n filter,spacer but now I am thinking of switching it to a 350tbi that engine are whitout manifolsd and tbi,so i wounder what i can use of my old stuff.
Ore should i just go for a new camshaft in my 305.
Give me some advice please.
I am from SWEDEN so dont be to hard on my spelling.

 

Howdy and welcome Firebird from Sweden,
If you have a 350 you can drop in there I would recommend doing that. But if you want to get some more horsepower out of your 305, I have some articles that you can use to build a pretty stout 305. I read a build up that created a 400 horsepower 305 with the throttlebody. If you want the info, email me and I will send it to you. I know it involved, a tbi, a set of heads and a cam/pushrod combo. I don't recall if you had to change the piston/pushrod set up.
I don't have info on a 305 to 350 throttle swap since I have a 305 tuned port injection set up and that's all I am really researching right now. But there are enough smart folks out there that should get you an answer for the 305 to 350 throttle body swap.
Rudy
Rudyyoko@aol.com