Thanks, everybody. It's a lot of fun and terror, but easier with the information posted on this site. Al, the owner didn't remember the name of guy who did the engine build (said he built "Herbie" but that could be anybody 
. Here's the engine build specs he shared with me:
1776 cc engine
Engle 110 cam and gear
Lightened and balanced connecting rods
Lightened (13 lb) flywheel and clutch
69 mm crankshaft (counterweighted)
Piston and liner set (905 mm)
Hardend race lifters
042 racing heads
Electronic SVDA distributor
Reconditioned duel oil relief case
40 mm duel carbs set Kadron style
Bosch blue coil
full flow oil pump (30 mm )
external oil cooler
remote oil filter
chrome moly head studs and case savers
1700 lb pressure plate and clutch kit
EMPI exhaust system
Fully balanced and flowed
The heads have round ports so I don't think they are "extreme." I failed to measure the valves when I had it apart so that's an unknown, too. I suspect it will be fast enough to merge on the few highways we have on Maui and slow enough that I won't be running over many island visitors If you have any HP estimates, I'd love to hear them. Mahalo (thanks)!