318 low budget heads change
I think it was SirDan that took an early 70s 318 and slapped on a set of 360 heads with a 340 cam and a 4 speed...he seemed pretty pleased with the general performance. And I'm inclined to agree with the part about having them shaved and using a shim head gasket...if you have the cash to spare afterwards, I bet the Lunati 256/262 Voodoo grind would be great in a cruiser.