I know it's been a bit since this thread was active, and it's deviating from the title a bit, but I'm in a bit of a new situation that I'd like some input on if possible. It's come to my attention that my head gaskets are starting to go bad, an obviously I want to get those replaced asap. As long as a I have my heads off and everything, I figure I might as well put some GT40 or GT40P heads on in their place. It sounds like they're a direct replacement, except that the P's put the spark plugs at a slightly more inconvenient angle. Is that the case? My plan currently is to buy some GT40 heads, new spark plugs, BBK shorty headers, a catless h-pipe I found on jegs, as well as new gaskets/hardware and fluids. I was also planning on an egr delete while I was at it, not sure if the bbk headers have provisions for the egr valve anyways. Other than going broke, any issues with this plan? Will the stock intake manifold work fine? Is it worth getting high temp spark plug wires and GT40P heads as opposed to just getting GT40 heads?