I would get an Edelbrock performer 4bbl. intake manifold with a Edelbrock 600 CFM. carb, summit racing has everything you need.
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Holley 650 double pumper for the win!
Contact the cam manufacturer of your choice for a specific recommendation.
top choice
put your 9/16" wrench on one of the assembly bolts, get 5 or 6 big friends to pick-up the El Camino and turn it. u can pick the nationality or your choice for this job.
Reliability, security, cost, performance, and compatibility.
By placing a shard of broken pottery marked with their choice in a barrel to be counted.
"Best" is a very subjective measure. Barrels by any major barrel manufacturer or by Glock would not be a poor choice.
In a case of some vehicles the choice of engines can be anywhere from 4 cylinder engines to 8 cylinder engines. This can determine the value of the vehicle as well as the performance of that vehicle. Higher valued cars will cost more to replace when a claim is made. Higher performance cars are shown to be in more accidents. Usually, those who choose to drive higher performance cars are riskier then those who choose to driver lower performance cars. This may not be true in your case, but overall.
Not in the GTO. You had a choice of 389 Tri-power (19,045) or 389 4 barrel. ( 77,901)
You have no choice but to replace the liner
If the engine is high mileage yes, replace the head bolts. If it is low mileage it is your choice, but is always a good idea to replace them.
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One of the BEST ...With the barrel sawed off at 13 inches so it's legal ...