283 chev engine are ok i have a fuelie 57 and that car is still fast with a little work my engine revs 9200 rpm would go 10000 but had truble with valve springs and you can mess with the 350s i have that also but today my new one is a small block chev 472 now this one could pull trees this one is new and havent been on the track yet don vintage racing also have a 12port 6cy could suprise many out the of its performance donorlougeorge@msn.com