Hi....just a question about "cossie heads"... witch one, 2wd or 4wd, would be the best head to use, as Im thinking about getting it modified.

I have one of each, so Im trying to find out if I should use,.... the 2wd or 4wd head ??

Also if I could get some advice about cams...should I change both ..or as I have heard only the inlet cam... ?? And what type...bd 10-12 or ... ??

The car, 2wd Sapp Cos, with 4wd engine, L8 and so on, will be running greys, uprated T-34 and so on.

Please advice