ls/lm head question.

[59weasel]

ok thanks for the info guys!! pretty much sounds like unless I was doing a full blown rebuild and stepping up on cam selection it really wouldn't be worth my time. oh.. 123K on my LM7. so a little freshening up is just a little ways down the road. i'll probably just have the heads gone through and jump up a little on the cam when it comes time. already have headers and switched to carb'ed intake from Eldelbrock w/ carb.

oh but I do have another question...

which heads are better? rectangle port or cathedral port? I have guys tell me cathedral all the way, but have read they are really the same size just different shapes.....