Oh ya and when bwolf asked about losing power if switching to Northstar. I mean I'm not an expert or even close, but most of the time I know what I'm talking and if you want to switch to something that much bigger is up to you, but honestly certain mods are questionable. I mean a stock Ls1 has a 75 mm TB. Northstar is 77mm. I mean putting a TB that big on a L36 is kinda pointless in my opinion. I might be throwing myself in a fire by saying this but oh well. If you're going to do big mods like a cam or heads on a v6, honestly you might as well get a V8. Sorry just an opinion. Don't freak out people.