pic of my car just for kicks - 525HP destroked 400 (353 cubes with a 327 crank) on pump gas, solid tappet cam for simplicity, 5100-7300 rpm band tho' the car is light enough to pull like a freight train from 3000rpm. The car is 2650lbs almost on the money with full tank, 55% rear weight bias, 4spd Porsche trans so lllllooooonnnnngggg pulls in mph thru the gears as the car is good for 60mph in 1st gear, 105mph second, 141mph third and then whatever my pucker factor can handle in 4th hahah with the 25.5" diam tire
That is heavy for a Porsche racer but it is full tube chassis with steel body and doors, V8, etc etc and I run Porsche 930 Brembo brakes right off the stock vehicle in 1977-1978. I had 15" wheels before but went to lightweight Kodiak 16s as the tire selections were 3"+ smaller in daimeter in 10" to 12" widths and the slicks are lighter than DOT-R tires!