I'm looking at replacing my 305 soon and am considering installing a 350 with vortec heads, GM vortec tbi manifold and a Holley 670 cfm tbi. About what hp/torque am I looking after it is finished? Also what would be the best cam to use for it?

 

I just did that swap not too long ago and I had a custom chip already made, and I wanted to compare the stock chip to the new one, but I could barely get it to run on the stock chip and injectors so I just went to and swapped in the new chip and 454 tbi. I'm not sure what kinda cam you're gonna be running, flat or roller? But I used the Comp Cam Hydraulic Flat tappet XE262 218/224 and .462/469 lift with the stock converter. If I could do it over again, I would use the XE250 with 1.6 RR to bring some of my low end back, but now I'm just gonna get a higher stall converter.