to be honest it was just going to come out of the side of the engine but i discovered that i had some clearance issues, so it had to be a top mount square fold. but some more news, i found a first gen 2.5 engine, the first year they put the injected 2.5 in the s truck. from this i will build the killer motor and boost the fuck out of it. im going to punch it out as far as i can physically and go from there. arp studs top and bottom, steel marine timing gears, copper head gasket, balanced everything. should be good for 300hp plus.