[Bannon]

When I ordered my SPF, the Olthoffs told me that the 485 hp version is the only one that they put in the cars due to it's more favorable street manners. (Dual plane manifold and milder cam) From what I understand the 535 hp version does not like to run as smoothly or pull as hard under 2000 rpm. With the Tremec TKO, 60 MPH is right at 2000 rpm with 3.73 gears so you may find yourself tending to shift from 4th to 5th and back around this cruising speed.

I had to ask myself would I really miss 50 HP at this level of performance. Nah...

I do have to qualify my statements by saying I have never driven a 535 powered car, but the 485 version had fantastic power but was also very mild mannered if you kept your foot out of it. You could drive around at 45 mph in 5th gear pulling 1700 rpm and accelerate right on out with no balking.


Hope this helps...

JB