http://www.holisticpage.com/camaro/parts/dist.htm
Looks like 1111956 350/255 std single
Also found this...
http://www.chevellestuff.com/generic...or_numbers.htm
1969 ~ ENGINE NUMBER
307 200hp (7-12) 1111481
350 250hp manual (6-12) 1111486
350 250hp automatic (12) 1111487
350 300hp manual (6-8) 1111488
350 300hp automatic (8) 1111489
396 325hp 1111497
396 350hp manual (6) 1111498
396 350hp automatic, 375 hp all (14) 1111499
350 255hp automatic (4) 1111955
350 255hp manual (4-6) 1111956