I had looked at these engines (Vortec 3000) for the dragster and with a modified ECM and bigger injectors they should be able to pump out close to 300 HP N/A. The redesigned intake ports are a big help too. If it's the same as this PDF file the water pump is also an interesting rediesign, http://pdf.nauticexpo.com/pdf/marinepower/vortec-3000/22171-12476.html

'45 Ford PU
66 Valiant wagon, leaning tower of power.
79 Chevy C10 w/250
02 PT Cruiser Convertable