Hey guys, in an attempt to gain alittle more ponies out of my gutless 160HP (stock) 350cid in my '86 Chevy K5 Blazer, I am seriously considering a cam swap to help in the fight. I am a long way from building my 'dream' 383 for it, so I have to make due for now. Here's my question. Is this a good idea on a motor with 100k already on the clock? The motor runs strong and smooth, great oil pressure, oil changed every 3k miles, etc. The cam would be a mild Summit hyd flat tappet grind (clone of the Edelbrock 'Performer' cam). Of course matching lifters and new Z28/LT4 valve springs/retainers will be installed as well. Plus, while the motor is out of the truck, the motor will be cleaned up and repainted. Also the following would be replaced and/or installed: Performer (EGR) intake, double roller timing chain, Melling oil pump w/ new shaft, aluminum water pump, Carter fuel pump, full length SMOG legal headers, etc. Hopefully I'll get another 100k miles out of it before a total teardown and rebuild is needed. Since the truck was new it has never been able to break traction on the dry street. I always thought it was because of the factory posi-traction. But even after 4.11 gears replaced the stock 3.08's, still nothing. Breaking traction isn't a priority, but at least it tells me that I have room for improvement. If I could get 50HP gain out of all the mods, I'd be pretty happy. How much do you think I'll gain with all the improvements? Thanks guys.