I was looking around the net at 305 combinations that worked and stumbled across lunati 305 build up. I dont know too many people that even bother to rebuild their 305 so I was shocked to see one on the net that a well know company endorses. Has anyone tried this combination but kept the tpi instead instead of swapping to a carb? Well what I mainly want to know is-is it worth it to rebuld my 305? Here is the lunati build up website lemme know what your opinions are.
http://www.goingfaster.com/spo/343hp305.html

 

My opinion is if money is a concern and you only are planning a stock rebuild and performance isn't an issue, then rebuild your 305...or if you're not planning a rebuild, but just spicing it up, go ahead and add things to the 305.

If it is rebuild time and you're wanting performance, then use a 350-build...the extra 100-150 spent on another block, is worth the $ vs HP game.

 

First off, that's not exactly a street buildup there. The cam is 235* single pattern duration, which IMO is a tad much for the street. Maybe if you had high gears and high stall (or manual), but still then most people wouldn't enjoy driving it on the street. Second, if you use stock TPI you won't make near as much power as they did. If you went aftermarket and used a miniram or something of that nature (I'm not an expert on FI, so don't quote me) it would come close. 305's aren't bad motors, they're just displacementally challenged They'll make power if you put good parts on them, but most people aren't willing to do that. Right now I'm building a 320hp 305 for my daily driver which will be much more street friendly (but still it's not too friendly). If you'd like specs, just let me know, I would be more than happy to provide them.

 

Yeah if you can it would be cool to get those specs on the 305 you are putting together. My plan is to put a fuel injected motor into my 67camaro resto project. My goal is to make a 350hp motor mated with a 6 speed tranny out of a 4th gen camaro.

 

A good rule of thumb is that the 305 is fine to mod externally ..... exhaust, the cam even, etc. It's a perfectly good motor on its own, as far as it goes. But, with 350s as cheap and plentiful as they are, it makes little sense for most people to build a 305 short block when they can buy a 350 short block core and build that, for a total cost almost exactly the same as rebuilding a 305. So, when modding a 305, it pays in the long run to avoid things that are 305-specific, and to leave the short block alone until such time as it needs replacement, and then to change it to a 350.

The 350 will win the HP/$$$ war over the 305, every time, no further questions necessary, no other outcome possible.

Now if 350s weren't so cheap and/or plentiful, the situation might be different.

 

Alright, here it is:
305 block, std bore; ported 416 casting heads; .015 steel shim head gaskets; z28 springs/retainers; Comp roller tip rockers; Summit 224/224 .465/.465 cam; Street Dominator intake; Holley 650 DP w/MS. Should put out somewhere in the neighborhood of 320hp.

I agree with RB though, if you're starting from scratch, there's not reason to build a 305, but if you have a good shortblock and don't want to spend a whole lot of money/don't need a ton of power then the 305 works well.