My apologies Jim – I should have appreciated you’d have greater knowledge of US STUFF than I.
Talking of power outputs; just read an article about the (new?) Jegs/Kaase heads in which they’re talking hp figures that sound crazy to me. They took a 100,000 mile Mustang fitted it with Jeg/Kaase heads, 256 degree cam and Holley Systemax intake and claim it made 424 hp and 389 torque. Throwing caution to the wind, they followed this with a further dyno test with Elelbrock Victor intake and Holley 750 (carb?) and recorded 511 hp @ 7800!! By their own admission, they expected the engine to blow – but 511 hp? Would I be right in thinking to achieve even the more modest 424 hp output would have meant a serious loss of power at the bottom end?
Max