actually theres no such thing as a hotter plug or a colder plug it is all about removing heat from the cylinder go to ngk spark plugs .com and check out their web site it explains it its pretty cool.
No, it shouldn't. Something else is causing it to run hot.
no
Yes, but running a 350 cam with 305 heads is not effective,you need to run 350 heads as well. In order to benefit from a 350 cam you need something to flow that extra fuel and air, so using 350 heads along side of the 350 cam will be the cheapest and best choice. HAVE FUN!! A 350 head can physically bolt onto a 305 block. However, 350 heads can have the valves extend into the cylinder and contact the cylinder wall (even with the smaller 305 cam). The 350 cam in the 305 with stock heads will work. You wont want to use 350 heads you will lose compression due to the largers combustion chambers.
no
150 LBS. per cylinder. If you hace more then 15 LBS. difference between any cylinders the engine will idle rough and not run good.
A cylinder is misfiring.
torque converter
NO. It would pop and back fire.
yes it will
What would cause a 76 model 350 Chevy to run bad when idling. Already replace ignition module Distributor cap and rotor
No more then 0.060 and then it starts trying to RUN HOT on you.