what does ls1 with stock 243's put out?
while they're off, may as well spend a few extra $$ and get a mild port job and mill them a tad.
that could boost the gain into the 20-30hp range possibly, especially if you get a cam down the road.
can't say i've seen any before/after...apples to apples..comparison between ls1 and untouched ls6 heads.
and only a few comparisons of stock cam with ported heads...although the results were nice.


