Hey guys, I am new to this forum and have a question. first some background,I have a 1983 chevy elcamino with a 305 engine with 226,000 miles and only has 145hp. I want to have a little more power but dont have plenty money to spend right now. I have a 1971 400 with matching heads that my brother law pulled out of a 68 camaro It was running great when he pulled it to put in a zz4 crate engine. he gave me the 400..I have researched and everyone says throw the heads away they are useless but it seems there all looking for 400 plus horsepower, I am not I want to drive this baby everyday and if I can get 300 to 325 that would be great..What do you guys recommend?