OK, my brother-in-law's rex stalls after it warms up for 15 minutes. IF you slowly press the throttle it's fine, but if it's pressed fast it stalls out. I also noticed some smoke around the back of the intake manifold, but cannot tell from where.
Any suggestions? Thanks.
Stick

 

could be about 10 things thermastat,raditor,fluids,senser's,timing,idle,inj ectors,bad motor, i had a prob like hat wouldnt go pst 30 mph, go buy some deep lube, motor oil,injector cleaner,gas treeamnet, all reg maintce prettymuch,, give me the tranny..