Destroked Small Block?

smaller motor should (that's should) make more HP per cu in if you can spin it up
so lighter works better
for the same cu in larger bore shorter stroke wins
you can use a long rod with correct cam
throw your car on a scale and lets see what it might weigh
lots of motor size choices once you know the weight
Ted Cyr (Cyr & Hooper) built a blown sbc three wheeler with drop to go jack stands he had two HUGE batteries back of the Axle to make weight
I think the class was some BB/A or BD/A fiat body Long Beach cold night fortified with a little flask- sound really ripped
slipper tires B4 slipper clutch short wheelbase Scotty Fenn style what fun
opening the exhaust early can really make some noise
1800 for a 305 would be tough even for Sneaky Peet Robinson