The 350 in my 86 K3500 crew cab ate a rod bearing and I need to get it back on the road quick. I have a good running 307 with Edelbrock performer carb/cam/manifold etc.. It runs pretty strong in my 77 K10. The other option is to get a crate 350 long block (supposed to have around 225hp) and use the old GM manifold and Q-jet instead. Will the 307 be strong enough for a ~6000# truck? Thanks!