is a relative thing i suppose. mine felt slower than the 617 turbo d but i am not sure in looking back that it wasnt all clogged up with tar in the intake. the car carries a pretty high gear ratio in the rear end hence is slow off the line. also due to the high rear ratio it takes a while to get up to cruising speed but if you hold the foot on the floor and let it wind it isn't too bad. btw i got my best mileage when the back muffler had a big hole in it.

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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.