Alloy heads

Funny , but I`ve been hotrodding for over 50 yrs. , and ur the only one I`ve ever heard claim that. I know my 505 wouldn't run right/good w/ cast iron heads on it /set up the same way it is now, would rattle like hell . ????
Well known gurus all have claimed and stated to run alum heads . Mr. Tom Hoover even said it .------------

You and Tom Hoover would be correct, YR not so much. J.Rob