That thing is just begging for a 13B rotary swap in there!

Or at least a L20B. Those old pushrod Datsun engines don't have alot of power potential. The 210's I believe are the only Datsun models to use a pushrod 4 in the 70's. A good source for a L18 or L20 would be an old 620 pickup, or 610/710 sedan or wagon. Then again, a KA24DE or SR20DET may fit in there as well......
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1998 Nissan Frontier XE/2wd/5spd 1 owner, 264k miles
1985 Olds Cutlass, 350 Chevy, owned for 14 years
WANTED: 1968-1973 Datsun 510 or 1991-1994 Sentra SE-R
http://www.myspace.com/junkyardengineer