Quick question....I've searched but haven't come across any information (maybe my queries were wrong, but who knows). I'd like to know how much hp/tq a stock '66 frame can handle without welding in sub-frame connectors and torque boxes. I'm on the fence about what I want to do with my car. I do not want to alter (by welding, etc) the frame. My car is a factory 66 GT, so any changes I make need to be easily reversed (with the original, or original style equipment) with little work. My car is a driver not a show car. So, I was looking at just rebuilding the block back to OE specs, etc (225hp gross, etc). Or, I've thought about changing out the intake, carb, heads and cam and pulling 275-300hp out of the engine. I'm just not sure what the frame can handle without altering it. Does anyone know?