ok i looked in my haynes. the intake cam seems the same. the exhaust opens 4 degrees later on the us and closes the same amount later.

is this enough to make a big difference?

i think i remember in the old studies this type of difference differentiated the coupe motors from the sedan motors and the later timing causes the tourque to come in at a lower rpm and doesnt change the output total.

does this sound right?

tom w

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.