Cam degree help for 305 chevy
 

Re: Cam degree help for 305 chevy
 

az,

If the cam grinder told you that would be the best place to run it, then that is what I would do. I have put one in that far advanced before on a dirt track engine. I dont claim to be anything close to a camshaft expert, but one thing I will do is listen to the cam company. If they tell me to put it in at 99, thats at least where I am going to start. I would absolutely call them and make sure there was no mistake made on the cam card. And, unless someone here is running the exact same combination, any suggestions are only speculation.

Just my opinion,

Re: Cam degree help for 305 chevy
 

My 305 stuff (dished and flat top) would never allow me to run the cam that far ahead but if yours will fit there......run it; you can always back it up if it doesn't like it. If you are really new at this, remember that the piston-valve clearance on these engines can be basically zero with a checking spring (intake side only). TT

Re: Cam degree help for 305 chevy
 

Like Bill said, If the person who spec'd the cam for you said to put it in there, then do it. If your going by suggestion, its just that. Now if you were to list the car's combo and engine combo, you may get some opinions on where to put it

If the guy who spec'd it had it ground with 4° advance, and you want to put it in 6° advanced based on a suggestion you will most likely not be able to tell the difference on a bracket engine. On a class engine, you may be able to tell the difference between 4° and 6° advanced by ET's and on the Dyno

Re: Cam degree help for 305 chevy
 

Generally speaking if it is a stick car, run it straight up to start, I have never run more than 2 degrees advanced in every 305 stocker engine of mine. (all sticks) If it is an automatic, the tendency is to run it advanced some, but the piston to valve may determine how far forward you can push it. It is trial and error on what will run best, and it may run best straight up even with an automatic. there are alot of contributing factors, and very few cam co's know for sure what will be the best for your setup

Re: Cam degree help for 305 chevy
 

I'd probably split the difference and install it @ about 103, but ,as mentioned, check your clearances. You'll know if you can advance it some more,...after evaluating your 60', MPH, and traction situation with the car itself.
Where are you located?

Re: Cam degree help for 305 chevy
 

Are you talking lobe separation versus intake centerline? Degree per cam grinders instructions.

Re: Cam degree help for 305 chevy
 

no matter where you put the cam just make sure you check piston to valve clearance ,you can all ways change it back if you dont feel it's up to par ,,,,,gmonde

Re: Cam degree help for 305 chevy