Are these heads better than stock LO3?

[Koll]

I have a set of 305 heads off of a chev. caprice I think it was. I just measured the valve sizes and they measure 1.84 and 1.51. One plus is that they are NOT swirl heads. What are the stock valve sizes?

[90FormulaWS6]

187 (stock LO3) heads have the same valve sizes, the 187 heads can be good heads when ported and polished you should look into that

[NJSPEEDER]

if the heads are center bolt with those valves they are LO3 heads.
heads are far from teh biggest problem with teh LO3. teh cam is the weakest link.

later
tim