I am looking into getting headers and a cam for my 305, (yes I know it would be better as a boat anchor) the previous owner swapped out the tbi for a carb, used a zz4 intake on it, installed a hei, beyond, I am unsure what has been done,
I have added a flowmaster muffler, edelbrock fuel pump, self contained fan sensor and relay,
I plan on installing headers that I can use with the planned 350 vortec being built,

now the question is, is the 91 l03 a roller cam, that would change my options if it was, I could visually check, but pulling the intake for just to see, to me seems a bit silly at this point

here are the plans,
Hedmad headers 68470,
comp cam xe268h
3" exhaust all the way back with a 3" cat, 2.5 exit from muffler

I am not trying to make the 305 something its not, just trying to have a little fun with it till I get the 350 ready,

 

Yes.

 

thank you,