Re: meth/alky install
I've always been a fan of running it like Rick has posted above (post-IC). If the air leaving the turbo is 200 degF and the IC cuts it down to (let's say) 110 degF, then IMO the methanol has a greater ability to drop that air to 60-70 degF. Whereas if you spray pre-IC, the methanol exhausts it's cooling capabilities and the IC is left to lower the (now cooler) IATs. I just don't think the upper IC is as capable at dropping the temps as low as methanol once the air is semi-cooled.