Well I was thrown a curve ball yesterday when I finally pulled the tarp and unwrapped my 345 V8 I had picked up 6 months ago. Turns out that it was a 304 V8 not a 345 V8 like the guy I bought it from claimed. Now before I get reprimanded by all of you IH veterans, who have collected a wealth of knowledge over countless years, let me give you the back story. One month after buying my 75 SII (304/3sp manual/D20) I found a 345/TF727/D20 setup on eBay that I ended up wining for a whopping $50. I purchased it initially for the 727 since my girlfriend can't drive a manual and in the event she needed to drive the Scout, she'd be able to. Plus I figured that I could re-build the 345, and do some slight performance enhancements (4bbl or EFI/ignition/cam). Well after sitting wrapped up in a trap at the end of my driveway, and probably off the neighbors, I used my new 2-ton engine hoist to put in on an engine stand. Once out of the driveway and next to the workshop, I started to strip off the accessories and pull the valve covers & valley pan to get a better look at the valve train. When I pulled my valve covers off, I immediately saw a big 304 stamp on the top of the head. I quickly looked down at the block and sure enough, 304. Now at the time of buying this, I didn't know where to look to identify the motor, and for $50 for the the engine/trans/tc, who cares.... Well now I do. I already have a 304 in the Scout and was hoping to go to the 345, especially since I'd acquired a 345 4bbl intake and rebuilt Edelbrock 4bbl carb before making this discovery. What should I do now? Should I go along with my previous rebuild/upgrade plans and use this 304? Which was really clean on the inside and was running when pulled. Or should I go out and look for an equally clean 345 to go over like I had previously intended. I'll be swapping in the 727 regardless of engine choice so here will be my Scout's drive train specs: D44's w/ 4.09 and Lock-Right rear locker D-20 Transfer S.O.A 35" tires. This will be my all purpose rig, seeing both street and moderate off road use. I know it will never drive like a race car (I've got an E55 AMG for that), but I want to have enough grunt to drive to the mountains or pass people on the highway without having to floor it. Any thought's? Suggestions?